|
MONTANA
/ Glasgow
Latitude (N): 48.22
Longitude
(W): 106.62
Elevation (feet): 2,297
Annual Precipitation (inches): 12
Annual heating degree days (base 65 deg. F): 8,940
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
|
3.6 |
6.5 |
4.1 |
1.2 |
|
BTU/ft2
|
1,142 |
2,062 |
1,301 |
380 |
| On
vertical surface |
|
kWh/m2
|
4.2 |
3.1 |
3.9 |
2.8 |
|
BTU/ft2
|
1,332 |
983 |
1,237 |
888 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
19 |
51 |
44 |
6 |
| Daily
Max. - Degrees F |
40 |
78 |
70 |
25 |
| Wind
Speed - miles/hour |
11.4 |
11.0 |
11.2 |
10.1 |
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