|
MINNESOTA
/ Duluth
Latitude (N): 46.83
Longitude
(W): 92.18
Elevation (feet): 1,417
Annual Precipitation (inches): 30
Annual heating degree days (base 65 deg. F): 9,900
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
43 deg.
|
67 deg.
|
43 deg.
|
19 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.8 |
6.0 |
3.7 |
1.2 |
|
BTU/ft2
|
1,205 |
1,903 |
1,174 |
380 |
| On
vertical surface |
|
kWh/m2
|
4.6 |
2.9 |
3.3 |
2.7 |
|
BTU/ft2
|
1,459 |
920 |
1,047 |
856 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
16 |
48 |
44 |
5 |
| Daily
Max. - Degrees F |
33 |
71 |
64 |
21 |
| Wind
Speed - miles/hour |
11.9 |
10.1 |
9.8 |
10.7 |
[Select
another city]
|
|
