|
TEXAS
/ Amarillo
Latitude (N): 35.23
Longitude
(W): 101.70
Elevation (feet): 3,603
Annual Precipitation (inches): 19
Annual heating degree days (base 65 deg. F): 4,320
APPROXIMATE
SUN ANGLE (at noon facing due south)
|
Mar
21
|
June
21
|
Sept
21
|
Dec
21
|
|
55 deg.
|
79 deg.
|
55
|
35 deg.
|
AVERAGE DAILY SOLAR RADIATION
| |
March
|
June
|
September
|
December
|
| On
horizontal surface |
|
kWh/m2
|
4.9 |
7.1 |
5.2 |
2.7 |
|
BTU/ft2
|
1,554 |
2,252 |
1,649 |
856 |
| On
vertical surface |
|
kWh/m2
|
4.2 |
2.2 |
3.7 |
4.6 |
|
BTU/ft2
|
1,332 |
698 |
1,174 |
1,459 |
AVERAGE TEMPERATURE
AND WIND SPEED
| |
March
|
June
|
September
|
December
|
| Daily
Min. - Degrees F |
33 |
61 |
56 |
24 |
| Daily
Max. - Degrees F |
62 |
88 |
82 |
50 |
| Wind
Speed - miles/hour |
14.8 |
13.9 |
12.8 |
12.8 |
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