|
MASSACHUSETS
/ Boston
Latitude (N): 42.37
Longitude
(W): 71.03
Elevation (feet): 16
Annual Precipitation (inches): 43
Annual heating degree days (base 65 deg. F): 5,590
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
48 deg.
|
72 deg.
|
48 deg.
|
24 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
3.7 |
6.1 |
4.3 |
1.5 |
|
BTU/ft2
|
1,174 |
1,935 |
1,364 |
476 |
| On
vertical surface |
|
kWh/m2
|
3.7 |
2.6 |
3.5 |
2.9 |
|
BTU/ft2
|
1,174 |
824 |
1,110 |
920 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
31 |
59 |
57 |
27 |
| Daily
Max. - Degrees F |
46 |
76 |
73 |
40 |
| Wind
Speed - miles/hour |
13.6 |
11.4 |
11.4 |
13.6 |
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