|
ALABAMA
/ Birmingham
Latitude (N): 33.57
Longitude
(W): 86.75
Elevation (feet): 630
Annual Precipitation (inches): 56
Annual heating degree days (base 65 deg. F): 2,860
APPROXIMATE
SUN ANGLE (at noon facing due south)
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
57 deg.
|
80 deg.
|
57 deg.
|
33 deg.
|
AVERAGE DAILY SOLAR RADIATION
|
March
|
June
|
September
|
December
|
On
horizontal surface |
kWh/m2
|
4.4 |
6.2 |
4.8 |
2.3 |
BTU/ft2
|
1,396 |
1,967 |
1,523 |
730 |
On
vertical surface |
kWh/m2
|
3.4 |
2.1 |
3.2 |
3.4 |
BTU/ft2
|
1,078 |
666 |
1,015 |
1,078 |
AVERAGE TEMPERATURE
AND WIND SPEED
|
March
|
June
|
September
|
December
|
Daily
Min. - Degrees F |
42 |
65 |
63 |
35 |
Daily
Max. - Degrees F |
66 |
87 |
84 |
56 |
Wind
Speed - miles/hour |
8.5 |
5.8 |
6.3 |
7.4 |
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