|
IDAHO
/ Boise
Latitude (N): 43.57
Longitude
(W): 116.22
Elevation (feet): 2,868
Annual Precipitation (inches): 12
Annual heating degree days (base 65 deg. F): 5,800
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
46 deg.
|
70 deg.
|
46 deg.
|
22 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.8 |
7.2 |
5.1 |
1.4 |
|
BTU/ft2
|
1,205 |
2,284 |
1,618 |
444 |
| On
vertical surface |
|
kWh/m2
|
3.7 |
3.0 |
4.6 |
2.6 |
|
BTU/ft2
|
1,174 |
952 |
1,459 |
824 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
32 |
52 |
48 |
22 |
| Daily
Max. - Degrees F |
53 |
81 |
77 |
38 |
| Wind
Speed - miles/hour |
9.4 |
8.7 |
7.8 |
7.4 |
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