TORNILLO 2 SSE, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(419088) TORNILLO 2 SSE
From Year=1946 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	653	452	291	96	10	0	0	0	4	101	408	675	2690
60	499	312	160	36	1	0	0	0	1	36	264	520	1829
57	406	234	102	18	0	0	0	0	0	17	188	427	1392
55	345	185	71	11	0	0	0	0	0	10	143	366	1132
50	203	89	24	3	0	0	0	0	0	3	64	222	607

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