|
MINNESOTA
/ International Falls
Latitude (N): 48.57
Longitude
(W): 93.38
Elevation (feet):
1,184
Annual Precipitation (inches): 24
Annual heating degree days (base 65 deg. F): 10,600
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
41 deg.
|
65 deg.
|
41 deg.
|
17 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.7 |
5.8 |
3.5 |
1.1 |
|
BTU/ft2
|
1,174 |
1,840 |
1,110 |
349 |
| On
vertical surface |
|
kWh/m2
|
4.6 |
2.9 |
3.2 |
2.6 |
|
BTU/ft2
|
1,459 |
920 |
1,015 |
824 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
11 |
49 |
42 |
-2 |
| Daily
Max. - Degrees F |
33 |
73 |
64 |
17 |
| Wind
Speed - miles/hour |
9.4 |
8.3 |
8.3 |
8.7 |
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