EL MIRAGE FIELD, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042771) EL MIRAGE FIELD
From Year=1971 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	678	526	443	279	109	17	0	1	22	164	471	698	3408
60	523	385	294	160	46	4	0	0	5	75	324	543	2360
57	430	302	214	105	24	1	0	0	2	42	242	450	1813
55	369	249	167	76	15	1	0	0	1	28	193	389	1486
50	223	134	74	26	2	0	0	0	0	8	97	243	807

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 Jul 28, 2006
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