LITTLEFIELD, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(415265) LITTLEFIELD
From Year=1966 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	827	647	482	228	63	4	0	1	36	203	513	791	3795
60	672	507	339	129	24	1	0	0	13	108	369	636	2800
57	580	425	263	87	13	0	0	0	7	70	291	544	2280
55	519	372	217	65	7	0	0	0	5	51	243	484	1963
50	373	252	124	29	2	0	0	0	2	21	145	340	1288

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