|
PENNSYLVANIA
/ Erie
Latitude (N): 42.08
Longitude
(W): 80.18
Elevation (feet): 738
Annual Precipitation (inches): 39
Annual heating degree days (base 65 deg. F): 6,770
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
|
3.4 |
6.3 |
4.1 |
1.3 |
|
BTU/ft2
|
1,078 |
1,998 |
1,301 |
412 |
| On
vertical surface |
|
kWh/m2
|
3.2 |
2.6 |
3.2 |
1.6 |
|
BTU/ft2
|
1,015 |
824 |
1,015 |
508 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
28 |
39 |
56 |
25 |
| Daily
Max. - Degrees F |
44 |
75 |
72 |
38 |
| Wind
Speed - miles/hour |
12.5 |
10.1 |
10.3 |
13.9 |
[Select
another city]
|
|
