LITTLEFIELD, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(024995) LITTLEFIELD
From Year=1951 To Year=1995
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	1	7	84	277	537	757	1047	994	762	380	37	0	4883
57	0	2	58	225	475	697	985	932	702	322	20	0	4418
60	0	0	29	155	387	607	892	839	612	238	6	0	3767
65	0	0	5	72	250	457	737	684	462	117	0	0	2784
70	0	0	0	24	134	310	582	529	313	32	0	0	1925

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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