LANCASTER, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(044747) LANCASTER
From Year=1917 To Year=1972
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	674	495	412	220	91	13	0	1	11	132	439	679	3167
60	519	355	265	119	33	2	0	0	2	54	292	524	2166
57	427	273	188	75	15	1	0	0	0	28	211	432	1651
55	366	222	144	52	8	0	0	0	0	17	164	371	1345
50	224	112	60	16	1	0	0	0	0	4	74	225	717

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