YUCCA 1 NNE, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(029645) YUCCA
From Year=1950 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	501	356	265	105	18	0	0	0	1	44	262	504	2057
60	348	223	145	44	4	0	0	0	0	15	143	350	1271
57	259	153	90	23	1	0	0	0	0	7	90	261	884
55	204	113	61	14	0	0	0	0	0	4	63	205	664
50	93	42	17	2	0	0	0	0	0	1	21	93	270

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