A COMPARISON OF SOLAR INSOLATION (GROUND LEVEL) AND AVERAGE TEMPERATURES AT SELECTED USA LOCATIONS WITH SIMILAR LATITUDES 30-year averages taken from: http://rredc.nrel.gov/solar/old_data/nsrdb/redbook/sum2/state.html
Location
Lat
Avg. July Avg. July Avg. Insolation Temp July Elev (m) (kwh) (deg. C) R.H.
Avg. July Abs. Humidity
July Abs. Humid. x Insolation
Land Surface Absorption Weighting Factor
Daggett, CA Birmingham, AB
34.87 33.57
588 192
11.4 7.3
31.6 26.6
24 74
7.93 18.62
90.40 135.93
2.5 1
Phoenix, AZ Jackson, MS
33.43 32.32
339 101
10.1 7.8
34.2 27.5
32 77
12.13 20.36
122.51 158.81
2 1
Medford, OR Des Moines, IA
42.37 41.53
396 294
11.3 8.9
22.7 24.8
48 68
9.69 15.47
109.50 137.68
1.25 1
Sacramento, CA Sterling, VA
38.52 38.95
8 82
11.4 7.6
24.3 24.2
53 73
11.72 16.05
133.61 121.98
1.25 1
Yakima, WA Buffalo, NY
46.57 42.93
325 215
10.7 7.9
21.1 21.7
44 68
8.10 12.96
86.67 102.38
1.25 1
Medford, OR Binghampton, NY
42.37 42.22
396 499
11.3 7.6
22.7 20.7
48 72
9.69 12.95
109.50 98.42
1.25 1
Pendleton, OR Rochester, MN
45.68 43.92
456 402
10.9 8.5
22.7 21.6
36 72
7.27 13.65
79.24 116.03
1.25 1
Dodge City, KS Lynchburg, VA
37.77 37.33
787 279
9.7 7.9
26.8 24.2
55 73
13.99 16.05
135.70 126.80
1.25 1
44.38 42.93
526 215
9.7 8.1
20.4 21.7
58 69
10.25 13.15
99.43 106.52
1.25 1
North Platte, NE Bradford, PA
41.13 41.80
849 600
9.5 7.6
23.3 18.4
63 77
13.16 12.10
125.02 91.96
1.25 1
Scottsbluff, NE Wilkes-Barre, PA
41.87 41.33
1206 983
9.8 7.6
23.4 22.1
56 71
11.77 13.85
115.35 105.26
1.25 1
Lubbock, TX Columbia, SC
33.65 33.95
988 1010
9.4 7.6
26.7 27.1
55 73
13.91 18.88
130.75 143.49
1.25 1
Lubbock, TX Atlanta, GA
33.65 33.65
988 315
9.4 7.7
26.7 26
55 74
13.91 18.00
130.75 138.60
1.25 1
Abliene, TX Columbus, GA
32.43 32.52
534 136
9.4 7.4
28.9 27.7
53 75
15.13 20.05
142.22 148.37
1.25 1
Amarillo, TX Ashville, NC
35.23 35.43
1098 661
9.5 7.2
25.9 22.7
53 81
12.82 16.36
121.79 117.79
1.25 1
Pierre, SD Buffalo, NY
Waco, TX Lufkin, TX
31.62 31.23
155 96
9.2 8.2
29.8 28.2
60 74
17.99 20.33
165.51 166.71
1.25 1
Austin, TX Jackson, MS
30.30 32.32
189 101
8.9 7.8
29.2 27.5
65 77
18.86 20.36
167.85 158.81
1.25 1
LECTED USA LOCATIONS WITH SIMILAR ELEVATIONS AND
ok/sum2/state.html
Adj. July Abs Humid x Insolation
Avg. December Insolation (kwh)
Avg. December Temp (deg. Avg. Dec. C) Temp. + 30
Avg. Dec. Abs. Humidity
Dec Insol X Dec Humid
226.01 135.93
6.8 4.4
9.2 7.3
39.2 37.3
4.11 5.61
27.95 24.68
245.03 158.81
6.3 4.5
12.3 8.8
42.3 38.8
5.63 6.63
35.47 29.84
136.87 137.68
2.1 3.7
3.2 -4.2
33.2 25.8
5.26 2.70
11.05 9.99
167.01 121.98
3.2 3.7
7.4 1.9
37.4 31.9
6.62 3.81
21.18 14.10
108.34 102.38
2.5 2.2
-1.2 -1.6
28.8 28.4
3.56 3.38
8.90 7.44
136.87 98.42
2.1 2.4
3.2 -3.1
33.2 26.9
5.26 3.04
11.05 7.30
99.05 116.03
2.2 3.1
1.3 -8.2
31.3 21.8
4.14 2.29
9.11 7.10
169.63 126.80
5.4 4.4
0.3 3.6
30.3 33.6
3.31 4.08
17.87 17.95
124.28 106.52
3.8 2.2
-6.2 -1.6
23.8 28.4
2.24 3.40
8.51 7.48
156.28 91.96
4.7 2.4
-4.3 -4.0
25.7 26.0
2.50 2.52
11.75 6.05
144.18 105.26
4.7 2.6
-3.2 -1.1
26.8 28.9
2.52 3.28
11.84 8.53
163.44 143.49
6 4.7
4.8 8.3
34.8 38.3
4.02 5.98
24.12 28.11
163.44 138.60
6 4.5
4.8 6.9
34.8 36.9
4.02 5.23
24.12 23.54
177.78 148.37
5.8 4.8
7.5 9.2
37.5 39.2
4.88 6.52
28.30 31.30
152.24 117.79
6 4.5
2.7 4.2
32.7 34.2
3.44 4.77
20.64 21.47
206.89 166.71
5.2 4.6
9.1 10.2
39.1 40.2
6.30 5.73
32.76 26.36
209.82 158.81
5.1 4.5
10.9 8.8
40.9 38.8
6.78 6.63
34.58 29.84
July Insolation vs. Temperature 35 34 33 32 31
Temperature (C)
30 29 28 27 26 25 24 23 22 21 20 19 18 7
7.25
7.5
7.75
8
8.25
8.5
8.75
9
9.25
9.5
Insolation (kwh)
9.75
10
10.25
10.5
10.75
11
11.25
11.5
11.25
11.5
Absolute Humidity vs. Temperature 21.00 20.00 19.00 18.00
Absolute Humidity
17.00 16.00 15.00 14.00 13.00 12.00 11.00 10.00 9.00 8.00 7.00 18
19
20
21
22
23
24
25
26
27
28
Temperature (C)
29
30
31
32
33
34
35
34
35
Absolute Humidity X Insolation vs. Temperature 170.00 165.00 160.00
Absolute Humidity X Insolation
155.00 150.00 145.00 140.00 135.00 130.00 125.00 120.00 115.00 110.00 105.00 100.00 95.00 90.00 85.00 80.00 75.00 18
19
20
21
22
23
24
25
26
27
Temperature
28
29
30
31
32
33
34
35
34
35
Adjusted Abs. Humid X Insolation vs Temp 250.00 240.00
Adjusted Abs. Humid. x Insolation
230.00 220.00 210.00 200.00 190.00 180.00 170.00 160.00 150.00 140.00 130.00 120.00 110.00 100.00 90.00 18
19
20
21
22
23
24
25
26
27
28
Temperature (C)
29
30
31
32
33
34
35
34
35
December Absolute Humidity vs Temperature 7.00 6.75 6.50 6.25
Absolute Humidity (g/m3)
6.00 5.75 5.50 5.25 5.00 4.75 4.50 4.25 4.00 3.75 3.50 3.25 3.00 2.75 2.50 2.25 2.00 21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
33.0
34.0
Temperature + 30 (C)
35.0
36.0
37.0
38.0
39.0
40.0
41.0
42.0
43.0
42.0
43.0
Temperature vs. Insolation x Humidity 36.00
Avg. Insolation x Absolute Humidity
34.00 32.00 30.00 28.00 26.00 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 8.00 6.00 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 41.0 42.0 43.0
Temperature +30 (C)
42.0 43.0