
| 
             State 
             | 
            
             City 
             | 
            
             Latitude 
             | 
            
             Longitude 
             | 
            
             Jan 
             | 
            
             Feb 
             | 
            
             Mar 
             | 
            
             Apr 
             | 
            
             May 
             | 
            
             Jun 
             | 
            
             Jul 
             | 
            
             Aug 
             | 
            
             Sep 
             | 
            
             Oct 
             | 
            
             Nov 
             | 
            
             Dec 
             | 
            
             Year Avg 
             | 
        
| 
             AL 
             | 
            
             Birming han 
             | 
            
             33' 34" N 
             | 
            
             86' 45" W 
             | 
            
             2.29 
             | 
            
             3.31 
             | 
            
             4.04 
             | 
            
             5.14 
             | 
            
             5.92 
             | 
            
             5.98 
             | 
            
             5.81 
             | 
            
             5.7 
             | 
            
             4.8 
             | 
            
             3.93 
             | 
            
             2.96 
             | 
            
             2.25 
             | 
            
             4.34 
             | 
        
| 
             AK 
             | 
            
             Anchorage 
             | 
            
             61' 10" N 
             | 
            
             150' 1" W 
             | 
            
             0.21 
             | 
            
             0.76 
             | 
            
             1.68 
             | 
            
             3.12 
             | 
            
             3.98 
             | 
            
             4.58 
             | 
            
             4.25 
             | 
            
             3.16 
             | 
            
             1.98 
             | 
            
             0.98 
             | 
            
             0.37 
             | 
            
             0.12 
             | 
            
             2.09 
             | 
        
| 
             AR 
             | 
            
             little rock 
             | 
            
             32' 25" N 
             | 
            
             94' 44" W 
             | 
            
             2.36 
             | 
            
             3.39 
             | 
            
             4.01 
             | 
            
             5.32 
             | 
            
             5.71 
             | 
            
             6.19 
             | 
            
             6.15 
             | 
            
             5.85 
             | 
            
             5.25 
             | 
            
             4.17 
             | 
            
             2.95 
             | 
            
             2.25 
             | 
            
             4.46 
             | 
        
| 
             AZ 
             | 
            
             Phoenix 
             | 
            
             33 ' 26" N 
             | 
            
             112' 1" W 
             | 
            
             3.25 
             | 
            
             4.41 
             | 
            
             5.17 
             | 
            
             6.76 
             | 
            
             7.42 
             | 
            
             7.7 
             | 
            
             6.99 
             | 
            
             6.11 
             | 
            
             6.02 
             | 
            
             4.44 
             | 
            
             3.52 
             | 
            
             2.75 
             | 
            
             5.38 
             | 
        
| 
             CA 
             | 
            
             Los Angeles 
             | 
            
             34' N 
             | 
            
             118' W 
             | 
            
             3.09 
             | 
            
             4.25 
             | 
            
             5.09 
             | 
            
             6.58 
             | 
            
             7.29 
             | 
            
             7.62 
             | 
            
             7.45 
             | 
            
             6.72 
             | 
            
             6.11 
             | 
            
             4.42 
             | 
            
             3.43 
             | 
            
             2.72 
             | 
            
             5.40 
             | 
        
| 
             CA 
             | 
            
             San Francisco 
             | 
            
             38' 31" N 
             | 
            
             121' 30" W 
             | 
            
             2.35 
             | 
            
             3.33 
             | 
            
             4.42 
             | 
            
             5.95 
             | 
            
             6.84 
             | 
            
             7.39 
             | 
            
             7.55 
             | 
            
             6.51 
             | 
            
             5.75 
             | 
            
             3.92 
             | 
            
             2.65 
             | 
            
             2.06 
             | 
            
             4.89 
             | 
        
| 
             CO 
             | 
            
             Denver 
             | 
            
             39' 45" N 
             | 
            
             104' 52" W 
             | 
            
             2.25 
             | 
            
             3.2 
             | 
            
             4.32 
             | 
            
             5.61 
             | 
            
             6.11 
             | 
            
             6.71 
             | 
            
             6.5 
             | 
            
             5.86 
             | 
            
             5.47 
             | 
            
             4.01 
             | 
            
             2.59 
             | 
            
             1.98 
             | 
            
             4.55 
             | 
        
| 
             CT 
             | 
            
             Hartford 
             | 
            
             41' 44" N 
             | 
            
             72' 39" W 
             | 
            
             1.7 
             | 
            
             2.43 
             | 
            
             3.48 
             | 
            
             4.07 
             | 
            
             5.14 
             | 
            
             5.58 
             | 
            
             5.38 
             | 
            
             5.04 
             | 
            
             4.13 
             | 
            
             2.91 
             | 
            
             1.81 
             | 
            
             1.42 
             | 
            
             3.59 
             | 
        
| 
             DE 
             | 
            
             Dover 
             | 
            
             39' 8" N 
             | 
            
             75' 28" W 
             | 
            
             1.85 
             | 
            
             2.62 
             | 
            
             3.6 
             | 
            
             4.33 
             | 
            
             5.44 
             | 
            
             5.91 
             | 
            
             5.64 
             | 
            
             5.3 
             | 
            
             4.38 
             | 
            
             3.23 
             | 
            
             2.21 
             | 
            
             1.66 
             | 
            
             3.84 
             | 
        
| 
             FL 
             | 
            
             Miami 
             | 
            
             25' 48" N 
             | 
            
             80' 16" W 
             | 
            
             3.72 
             | 
            
             4.61 
             | 
            
             5.42 
             | 
            
             6.4 
             | 
            
             6.61 
             | 
            
             6.29 
             | 
            
             6.26 
             | 
            
             6.08 
             | 
            
             5.47 
             | 
            
             4.84 
             | 
            
             3.96 
             | 
            
             3.46 
             | 
            
             5.26 
             | 
        
| 
             GA 
             | 
            
             Atlanta 
             | 
            
             33' 39" N 
             | 
            
             84' 26" W 
             | 
            
             2.31 
             | 
            
             3.37 
             | 
            
             4.08 
             | 
            
             5.2 
             | 
            
             6.02 
             | 
            
             6.01 
             | 
            
             5.81 
             | 
            
             5.59 
             | 
            
             4.76 
             | 
            
             3.95 
             | 
            
             2.98 
             | 
            
             2.33 
             | 
            
             4.37 
             | 
        
| 
             HI 
             | 
            
             Honolulu 
             | 
            
             21' 20" N 
             | 
            
             157' 55" W 
             | 
            
             4.38 
             | 
            
             5.15 
             | 
            
             5.99 
             | 
            
             6.69 
             | 
            
             7.05 
             | 
            
             7.48 
             | 
            
             7.37 
             | 
            
             7.07 
             | 
            
             6.51 
             | 
            
             5.46 
             | 
            
             4.41 
             | 
            
             4.01 
             | 
            
             5.96 
             | 
        
| 
             IA 
             | 
            
             Dubuque 
             | 
            
             42' 24" N 
             | 
            
             90' 42" W 
             | 
            
             1.64 
             | 
            
             2.58 
             | 
            
             3.34 
             | 
            
             4.57 
             | 
            
             5.54 
             | 
            
             6.06 
             | 
            
             5.81 
             | 
            
             5.26 
             | 
            
             4.33 
             | 
            
             3.03 
             | 
            
             1.72 
             | 
            
             1.35 
             | 
            
             3.77 
             | 
        
| 
             ID 
             | 
            
             Boise 
             | 
            
             43' 34" N 
             | 
            
             116' 13" W 
             | 
            
             1.73 
             | 
            
             2.72 
             | 
            
             3.77 
             | 
            
             5.22 
             | 
            
             5.9 
             | 
            
             6.57 
             | 
            
             7.17 
             | 
            
             6.12 
             | 
            
             5.28 
             | 
            
             3.29 
             | 
            
             1.74 
             | 
            
             1.46 
             | 
            
             4.24 
             | 
        
| 
             IN 
             | 
            
             Indianapolis 
             | 
            
             39' 44" N 
             | 
            
             86' 17" W 
             | 
            
             1.67 
             | 
            
             2.59 
             | 
            
             3.28 
             | 
            
             4.67 
             | 
            
             5.46 
             | 
            
             6.11 
             | 
            
             5.79 
             | 
            
             5.37 
             | 
            
             4.76 
             | 
            
             3.33 
             | 
            
             1.97 
             | 
            
             1.46 
             | 
            
             3.87 
             | 
        
| 
             IL 
             | 
            
             Chicago 
             | 
            
             41' 53" N 
             | 
            
             87' 38" W 
             | 
            
             1.5 
             | 
            
             2.45 
             | 
            
             3.2 
             | 
            
             4.48 
             | 
            
             5.56 
             | 
            
             6.07 
             | 
            
             5.68 
             | 
            
             5.27 
             | 
            
             4.51 
             | 
            
             3.07 
             | 
            
             1.69 
             | 
            
             1.26 
             | 
            
             3.72 
             | 
        
| 
             KS 
             | 
            
             Kansas City 
             | 
            
             39' 12" N 
             | 
            
             94' 36" W 
             | 
            
             2.06 
             | 
            
             2.89 
             | 
            
             3.62 
             | 
            
             4.92 
             | 
            
             5.58 
             | 
            
             6.17 
             | 
            
             6.21 
             | 
            
             5.59 
             | 
            
             4.9 
             | 
            
             3.49 
             | 
            
             2.2 
             | 
            
             1.75 
             | 
            
             4.11 
             | 
        
| 
             KY 
             | 
            
             Louisville 
             | 
            
             38' 11" N 
             | 
            
             85' 44" W 
             | 
            
             1.71 
             | 
            
             2.65 
             | 
            
             3.32 
             | 
            
             4.73 
             | 
            
             5.38 
             | 
            
             6.08 
             | 
            
             5.79 
             | 
            
             5.35 
             | 
            
             4.8 
             | 
            
             3.42 
             | 
            
             2.1 
             | 
            
             1.56 
             | 
            
             3.9 
             | 
        
| 
             LA 
             | 
            
             New Orleans 
             | 
            
             29' 37" N 
             | 
            
             90' 5" W 
             | 
            
             2.64 
             | 
            
             3.73 
             | 
            
             4.67 
             | 
            
             5.8 
             | 
            
             6.6 
             | 
            
             6.15 
             | 
            
             6.09 
             | 
            
             5.7 
             | 
            
             5.13 
             | 
            
             4.48 
             | 
            
             3.49 
             | 
            
             2.68 
             | 
            
             4.76 
             | 
        
| 
             MA 
             | 
            
             Boston 
             | 
            
             42' 22" N 
             | 
            
             71' 2" W 
             | 
            
             1.66 
             | 
            
             2.5 
             | 
            
             3.51 
             | 
            
             4.13 
             | 
            
             5.11 
             | 
            
             5.47 
             | 
            
             5.44 
             | 
            
             5.05 
             | 
            
             4.12 
             | 
            
             2.84 
             | 
            
             1.74 
             | 
            
             1.4 
             | 
            
             3.58 
             | 
        
| 
             MD 
             | 
            
             Annapolis 
             | 
            
             38' 35" N 
             | 
            
             76' 21" W 
             | 
            
             1.96 
             | 
            
             2.8 
             | 
            
             3.71 
             | 
            
             4.55 
             | 
            
             5.54 
             | 
            
             6.03 
             | 
            
             5.77 
             | 
            
             5.34 
             | 
            
             4.48 
             | 
            
             3.4 
             | 
            
             2.37 
             | 
            
             1.81 
             | 
            
             3.98 
             | 
        
| 
             ME 
             | 
            
             Portland 
             | 
            
             45' 36" N 
             | 
            
             122' 36" W 
             | 
            
             1.38 
             | 
            
             2.33 
             | 
            
             3.49 
             | 
            
             4.57 
             | 
            
             5.46 
             | 
            
             6.09 
             | 
            
             6.64 
             | 
            
             5.78 
             | 
            
             4.8 
             | 
            
             2.79 
             | 
            
             1.41 
             | 
            
             1.1 
             | 
            
             3.82 
             | 
        
| 
             MI 
             | 
            
             Detroit 
             | 
            
             42' 25" N 
             | 
            
             83' 1" W 
             | 
            
             1.43 
             | 
            
             2.33 
             | 
            
             3.19 
             | 
            
             4.34 
             | 
            
             5.44 
             | 
            
             5.98 
             | 
            
             5.64 
             | 
            
             4.99 
             | 
            
             4.25 
             | 
            
             2.73 
             | 
            
             1.52 
             | 
            
             1.14 
             | 
            
             3.58 
             | 
        
| 
             MO 
             | 
            
             St.Louis 
             | 
            
             38' 45" N 
             | 
            
             90' 23" W 
             | 
            
             2.02 
             | 
            
             2.82 
             | 
            
             3.52 
             | 
            
             4.97 
             | 
            
             5.56 
             | 
            
             6.21 
             | 
            
             6.05 
             | 
            
             5.63 
             | 
            
             4.91 
             | 
            
             3.55 
             | 
            
             2.21 
             | 
            
             1.73 
             | 
            
             4.09 
             | 
        
| 
             MN 
             | 
            
             Minneapolis 
             | 
            
             44' 53" N 
             | 
            
             93' 13" W 
             | 
            
             1.6 
             | 
            
             2.61 
             | 
            
             3.3 
             | 
            
             4.55 
             | 
            
             5.44 
             | 
            
             5.86 
             | 
            
             5.77 
             | 
            
             5.12 
             | 
            
             4.12 
             | 
            
             2.9 
             | 
            
             1.62 
             | 
            
             1.34 
             | 
            
             3.68 
             | 
        
| 
             MS 
             | 
            
             Jackson 
             | 
            
             42' 16" N 
             | 
            
             84' 28" W 
             | 
            
             1.47 
             | 
            
             2.41 
             | 
            
             3.22 
             | 
            
             4.33 
             | 
            
             5.46 
             | 
            
             5.93 
             | 
            
             5.57 
             | 
            
             4.99 
             | 
            
             4.3 
             | 
            
             2.78 
             | 
            
             1.55 
             | 
            
             1.17 
             | 
            
             3.59 
             | 
        
| 
             MT 
             | 
            
             Billings 
             | 
            
             45' 48" N 
             | 
            
             108' 32" W 
             | 
            
             1.55 
             | 
            
             2.57 
             | 
            
             3.52 
             | 
            
             4.82 
             | 
            
             5.63 
             | 
            
             6.45 
             | 
            
             6.39 
             | 
            
             5.75 
             | 
            
             4.67 
             | 
            
             3.19 
             | 
            
             1.77 
             | 
            
             1.3 
             | 
            
             3.96 
             | 
        
| 
             MT 
             | 
            
             Great Falls 
             | 
            
             43' 33" N 
             | 
            
             96' 42" W 
             | 
            
             1.3 
             | 
            
             2.36 
             | 
            
             3.41 
             | 
            
             4.84 
             | 
            
             5.56 
             | 
            
             6.18 
             | 
            
             6.44 
             | 
            
             5.53 
             | 
            
             4.4 
             | 
            
             2.9 
             | 
            
             1.53 
             | 
            
             1.11 
             | 
            
             3.79 
             | 
        
| 
             NC 
             | 
            
             Charlotte 
             | 
            
             35' 13" N 
             | 
            
             80' 56" W 
             | 
            
             2.22 
             | 
            
             3.17 
             | 
            
             3.95 
             | 
            
             4.98 
             | 
            
             5.8 
             | 
            
             6.01 
             | 
            
             5.76 
             | 
            
             5.27 
             | 
            
             4.58 
             | 
            
             3.75 
             | 
            
             2.76 
             | 
            
             2.21 
             | 
            
             4.2 
             | 
        
| 
             ND 
             | 
            
             Fargo 
             | 
            
             46' 54" N 
             | 
            
             96' 48" W 
             | 
            
             1.44 
             | 
            
             2.39 
             | 
            
             3.36 
             | 
            
             4.79 
             | 
            
             5.62 
             | 
            
             5.82 
             | 
            
             5.94 
             | 
            
             5.14 
             | 
            
             4.01 
             | 
            
             2.83 
             | 
            
             1.59 
             | 
            
             1.31 
             | 
            
             3.68 
             | 
        
| 
             NE 
             | 
            
             Omaha 
             | 
            
             41' 18" N 
             | 
            
             95' 54" W 
             | 
            
             1.92 
             | 
            
             2.76 
             | 
            
             3.45 
             | 
            
             4.74 
             | 
            
             5.6 
             | 
            
             6.14 
             | 
            
             6.11 
             | 
            
             5.46 
             | 
            
             4.74 
             | 
            
             3.34 
             | 
            
             2 
             | 
            
             1.57 
             | 
            
             3.98 
             | 
        
| 
             NH 
             | 
            
             Manchester 
             | 
            
             42' 56" N 
             | 
            
             71' 26" W 
             | 
            
             1.66 
             | 
            
             2.5 
             | 
            
             3.51 
             | 
            
             4.13 
             | 
            
             5.11 
             | 
            
             5.47 
             | 
            
             5.44 
             | 
            
             5.05 
             | 
            
             4.12 
             | 
            
             2.84 
             | 
            
             1.74 
             | 
            
             1.4 
             | 
            
             3.58 
             | 
        
| 
             NJ 
             | 
            
             Trenton 
             | 
            
             40' 13" N 
             | 
            
             74' 46" W 
             | 
            
             1.71 
             | 
            
             2.39 
             | 
            
             3.43 
             | 
            
             4.04 
             | 
            
             5.26 
             | 
            
             5.67 
             | 
            
             5.39 
             | 
            
             5.14 
             | 
            
             4.18 
             | 
            
             3 
             | 
            
             1.98 
             | 
            
             1.48 
             | 
            
             3.63 
             | 
        
| 
             NM 
             | 
            
             Albuquerque 
             | 
            
             35' 3" N 
             | 
            
             106' 37" W 
             | 
            
             2.92 
             | 
            
             3.97 
             | 
            
             4.92 
             | 
            
             6.3 
             | 
            
             6.68 
             | 
            
             6.94 
             | 
            
             6.66 
             | 
            
             5.8 
             | 
            
             5.68 
             | 
            
             4.18 
             | 
            
             3.16 
             | 
            
             2.5 
             | 
            
             4.97 
             | 
        
| 
             NV 
             | 
            
             Las Vegas 
             | 
            
             36' 18" N 
             | 
            
             115' 16" W 
             | 
            
             3.02 
             | 
            
             4.13 
             | 
            
             5.05 
             | 
            
             6.57 
             | 
            
             7.25 
             | 
            
             7.69 
             | 
            
             7.37 
             | 
            
             6.42 
             | 
            
             6.08 
             | 
            
             4.26 
             | 
            
             3.18 
             | 
            
             2.6 
             | 
            
             5.3 
             | 
        
| 
             NY 
             | 
            
             New York 
             | 
            
             41' N 
             | 
            
             74' W 
             | 
            
             1.67 
             | 
            
             2.37 
             | 
            
             3.41 
             | 
            
             3.93 
             | 
            
             5.11 
             | 
            
             5.48 
             | 
            
             5.26 
             | 
            
             5.01 
             | 
            
             4.05 
             | 
            
             2.85 
             | 
            
             1.82 
             | 
            
             1.4 
             | 
            
             3.53 
             | 
        
| 
             OH 
             | 
            
             Columbus 
             | 
            
             39' 16" N 
             | 
            
             85' 54" W 
             | 
            
             1.64 
             | 
            
             2.57 
             | 
            
             3.26 
             | 
            
             4.63 
             | 
            
             5.4 
             | 
            
             6.08 
             | 
            
             5.73 
             | 
            
             5.29 
             | 
            
             4.74 
             | 
            
             3.29 
             | 
            
             1.96 
             | 
            
             1.45 
             | 
            
             3.83 
             | 
        
| 
             OK 
             | 
            
             Tulsa 
             | 
            
             36' 12" N 
             | 
            
             95' 54" W 
             | 
            
             2.33 
             | 
            
             3.22 
             | 
            
             3.9 
             | 
            
             5.25 
             | 
            
             5.58 
             | 
            
             6.32 
             | 
            
             6.4 
             | 
            
             5.8 
             | 
            
             5.08 
             | 
            
             3.8 
             | 
            
             2.62 
             | 
            
             2.06 
             | 
            
             4.36 
             | 
        
| 
             OR 
             | 
            
             Portland 
             | 
            
             45' 32" N 
             | 
            
             122' 40" W 
             | 
            
             1.38 
             | 
            
             2.33 
             | 
            
             3.49 
             | 
            
             4.57 
             | 
            
             5.46 
             | 
            
             6.09 
             | 
            
             6.64 
             | 
            
             5.78 
             | 
            
             4.8 
             | 
            
             2.79 
             | 
            
             1.41 
             | 
            
             1.1 
             | 
            
             3.82 
             | 
        
| 
             PA 
             | 
            
             Philadelphia 
             | 
            
             39' 53" N 
             | 
            
             75' 15" W 
             | 
            
             1.85 
             | 
            
             2.62 
             | 
            
             3.6 
             | 
            
             4.33 
             | 
            
             5.44 
             | 
            
             5.91 
             | 
            
             5.64 
             | 
            
             5.3 
             | 
            
             4.38 
             | 
            
             3.23 
             | 
            
             2.21 
             | 
            
             1.66 
             | 
            
             3.84 
             | 
        
| 
             PA 
             | 
            
             Pittsburgh 
             | 
            
             40' 27" N 
             | 
            
             79' 57" W 
             | 
            
             1.59 
             | 
            
             2.4 
             | 
            
             3.26 
             | 
            
             4.07 
             | 
            
             5.05 
             | 
            
             5.53 
             | 
            
             5.27 
             | 
            
             4.94 
             | 
            
             4.05 
             | 
            
             2.88 
             | 
            
             1.86 
             | 
            
             1.41 
             | 
            
             3.53 
             | 
        
| 
             RI 
             | 
            
             Providence 
             | 
            
             41' 44" N 
             | 
            
             71' 26" W 
             | 
            
             1.7 
             | 
            
             2.46 
             | 
            
             3.53 
             | 
            
             4.2 
             | 
            
             5.17 
             | 
            
             5.67 
             | 
            
             5.48 
             | 
            
             5.08 
             | 
            
             4.21 
             | 
            
             2.97 
             | 
            
             1.8 
             | 
            
             1.43 
             | 
            
             3.64 
             | 
        
| 
             SC 
             | 
            
             Columbia 
             | 
            
             38' 58" N 
             | 
            
             92' 22" W 
             | 
            
             2.14 
             | 
            
             2.91 
             | 
            
             3.62 
             | 
            
             5.03 
             | 
            
             5.56 
             | 
            
             6.22 
             | 
            
             6.13 
             | 
            
             5.64 
             | 
            
             4.95 
             | 
            
             3.57 
             | 
            
             2.25 
             | 
            
             1.82 
             | 
            
             4.15 
             | 
        
| 
             SD 
             | 
            
             Sioux Falls 
             | 
            
             45' 27" N 
             | 
            
             98' 25" W 
             | 
            
             1.72 
             | 
            
             2.71 
             | 
            
             3.31 
             | 
            
             4.65 
             | 
            
             5.61 
             | 
            
             6.1 
             | 
            
             6.04 
             | 
            
             5.42 
             | 
            
             4.47 
             | 
            
             3.2 
             | 
            
             1.78 
             | 
            
             1.43 
             | 
            
             3.87 
             | 
        
| 
             TN 
             | 
            
             Nashville 
             | 
            
             36' 7" N 
             | 
            
             86' 41" W 
             | 
            
             1.94 
             | 
            
             2.9 
             | 
            
             3.54 
             | 
            
             4.76 
             | 
            
             5.57 
             | 
            
             5.9 
             | 
            
             5.86 
             | 
            
             5.62 
             | 
            
             4.63 
             | 
            
             3.53 
             | 
            
             2.45 
             | 
            
             1.82 
             | 
            
             4.04 
             | 
        
| 
             TX 
             | 
            
             San Antonio 
             | 
            
             29' 32" N 
             | 
            
             98' 28" W 
             | 
            
             2.57 
             | 
            
             3.7 
             | 
            
             4.43 
             | 
            
             5.54 
             | 
            
             5.94 
             | 
            
             6.62 
             | 
            
             6.49 
             | 
            
             6.28 
             | 
            
             5.7 
             | 
            
             4.67 
             | 
            
             3.43 
             | 
            
             2.62 
             | 
            
             4.83 
             | 
        
| 
             TX 
             | 
            
             Houston 
             | 
            
             29' 59" N 
             | 
            
             95' 22" W 
             | 
            
             2.47 
             | 
            
             3.5 
             | 
            
             4.4 
             | 
            
             5.59 
             | 
            
             6.03 
             | 
            
             6.45 
             | 
            
             6.36 
             | 
            
             6.07 
             | 
            
             5.46 
             | 
            
             4.61 
             | 
            
             3.3 
             | 
            
             2.44 
             | 
            
             4.72 
             | 
        
| 
             UT 
             | 
            
             Salt Lake City 
             | 
            
             40' 46" N 
             | 
            
             111" 52" W 
             | 
            
             2.23 
             | 
            
             3.15 
             | 
            
             4.09 
             | 
            
             5.57 
             | 
            
             6.26 
             | 
            
             6.98 
             | 
            
             6.86 
             | 
            
             5.98 
             | 
            
             5.39 
             | 
            
             3.68 
             | 
            
             2.29 
             | 
            
             1.97 
             | 
            
             4.53 
             | 
        
| 
             VA 
             | 
            
             Washington 
             | 
            
             38' 51" N 
             | 
            
             77' 2" W 
             | 
            
             1.95 
             | 
            
             2.8 
             | 
            
             3.66 
             | 
            
             4.46 
             | 
            
             5.42 
             | 
            
             5.88 
             | 
            
             5.63 
             | 
            
             5.22 
             | 
            
             4.38 
             | 
            
             3.36 
             | 
            
             2.34 
             | 
            
             1.79 
             | 
            
             3.9 
             | 
        
| 
             VT 
             | 
            
             Montpelier 
             | 
            
             44' 16" N 
             | 
            
             72' 35" W 
             | 
            
             1.58 
             | 
            
             2.54 
             | 
            
             3.5 
             | 
            
             4.05 
             | 
            
             5 
             | 
            
             5.24 
             | 
            
             5.37 
             | 
            
             4.92 
             | 
            
             3.79 
             | 
            
             2.46 
             | 
            
             1.52 
             | 
            
             1.28 
             | 
            
             3.43 
             | 
        
| 
             WA 
             | 
            
             Seattle 
             | 
            
             47' 32" N 
             | 
            
             122' 18" W 
             | 
            
             1.14 
             | 
            
             2.04 
             | 
            
             3.23 
             | 
            
             4.26 
             | 
            
             5.19 
             | 
            
             5.75 
             | 
            
             6.27 
             | 
            
             5.46 
             | 
            
             4.43 
             | 
            
             2.5 
             | 
            
             1.21 
             | 
            
             0.9 
             | 
            
             3.53 
             | 
        
| 
             WI 
             | 
            
             Milwaukee 
             | 
            
             42' 57" N 
             | 
            
             87' 54" W 
             | 
            
             1.43 
             | 
            
             2.41 
             | 
            
             3.29 
             | 
            
             4.48 
             | 
            
             5.6 
             | 
            
             6.09 
             | 
            
             5.74 
             | 
            
             5.21 
             | 
            
             4.34 
             | 
            
             2.9 
             | 
            
             1.6 
             | 
            
             1.2 
             | 
            
             3.69 
             | 
        
| 
             WV 
             | 
            
             Charleston 
             | 
            
             38' 22" N 
             | 
            
             81' 36" W 
             | 
            
             1.75 
             | 
            
             2.64 
             | 
            
             3.34 
             | 
            
             4.26 
             | 
            
             5.2 
             | 
            
             5.67 
             | 
            
             5.49 
             | 
            
             5.19 
             | 
            
             4.26 
             | 
            
             3.19 
             | 
            
             2.15 
             | 
            
             1.62 
             | 
            
             3.73 
             | 
        
| 
             WY 
             | 
            
             Casper 
             | 
            
             42' 55" N 
             | 
            
             106' 28" W 
             | 
            
             1.93 
             | 
            
             2.8 
             | 
            
             3.79 
             | 
            
             5.13 
             | 
            
             5.9 
             | 
            
             6.68 
             | 
            
             6.5 
             | 
            
             5.9 
             | 
            
             5.13 
             | 
            
             3.59 
             | 
            
             2.06 
             | 
            
             1.65 
             | 
            
             4.25 
             | 
        
| 
             
 Please note: If your region is not listed please visit the NASA website where you can search for insolation value for any areas of the world. You will need to obtain a free username and password to gain access. Haining SunSurf New Energy Technology Co., Ltd  |