|
MONTANA
/ Kalispell
Latitude (N): 48.30
Longitude
(W): 114.27
Elevation (feet): 2,966
Annual Precipitation (inches): 16
Annual heating degree days (base 65 deg. F): 8,360
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
42 deg.
|
66 deg.
|
42 deg.
|
18 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.1 |
6.1 |
4.0 |
1.0 |
|
BTU/ft2
|
983 |
1,935 |
1,269 |
317 |
| On
vertical surface |
|
kWh/m2
|
3.4 |
3.0 |
3.9 |
1.7 |
|
BTU/ft2
|
1,078 |
952 |
1,237 |
539 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
24 |
44 |
39 |
15 |
| Daily
Max. - Degrees F |
43 |
71 |
68 |
30 |
| Wind
Speed - miles/hour |
6.9 |
6.9 |
6.5 |
5.1 |
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