|
KENTUCKY
/ Louisville
Latitude (N): 38.18
Longitude
(W): 85.73
Elevation (feet): 489
Annual Precipitation (inches): 44
Annual heating degree days (base 65 deg. F): 4,530
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
52 deg.
|
76 deg.
|
52 deg.
|
28 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.8 |
6.3 |
4.5 |
1.7 |
|
BTU/ft2
|
1,205 |
1,998 |
1,427 |
539 |
| On
vertical surface |
|
kWh/m2
|
3.2 |
2.4 |
3.4 |
2.6 |
|
BTU/ft2
|
1,015 |
761 |
1,078 |
824 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
36 |
63 |
59 |
29 |
| Daily
Max. - Degrees F |
56 |
83 |
80 |
45 |
| Wind
Speed - miles/hour |
10.1 |
7.6 |
6.7 |
9.4 |
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