CHISOS BASIN, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(411715) CHISOS BASIN
From Year=1943 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	540	413	278	104	21	2	0	1	23	113	327	506	2329
60	389	281	161	48	5	0	0	0	6	46	201	355	1493
57	305	212	110	28	2	0	0	0	3	26	141	272	1099
55	253	171	83	20	1	0	0	0	2	18	110	222	878
50	146	90	37	8	0	0	0	0	1	7	53	121	463

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu