|
MICHIGAN
/ Houghton
Latitude (N): 47.17
Longitude
(W): 88.50
Elevation (feet): 1,079
Annual Precipitation (inches): 28
Annual heating degree days (base 65 deg. F): 8,300
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
41 deg.
|
67 deg.
|
41 deg.
|
19 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.5 |
6.0 |
3.6 |
1.1 |
|
BTU/ft2
|
1,110 |
1,903 |
1,142 |
349 |
| On
vertical surface |
|
kWh/m2
|
4.1 |
2.9 |
3.2 |
1.8 |
|
BTU/ft2
|
1,301 |
920 |
1,015 |
571 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
18 |
51 |
47 |
16 |
| Daily
Max. - Degrees F |
38 |
75 |
68 |
29 |
| Wind
Speed - miles/hour |
9.8 |
8.5 |
7.8 |
9.6 |
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