|
NORTH
CAROLINA / Raleigh
Latitude (N): 35.87
Longitude
(W): 78.78
Elevation (feet): 440
Annual Precipitation 41(inches):
Annual heating degree days (base 65 deg. F): 3,530
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
54 deg.
|
78 deg.
|
54 deg.
|
30 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
4.4 |
6.3 |
4.6 |
2.2 |
|
BTU/ft2
|
1,396 |
1,998 |
1,459 |
698 |
| On
vertical surface |
|
kWh/m2
|
3.6 |
2.5 |
3.3 |
3.5 |
|
BTU/ft2
|
1,142 |
793 |
1,047 |
1,110 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
39 |
64 |
61 |
32 |
| Daily
Max. - Degrees F |
62 |
85 |
81 |
53 |
| Wind
Speed - miles/hour |
9.2 |
6.9 |
6.7 |
8.1 |
[Select
another city]
|
|
