MILL CREEK 2, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045629) MILL CREEK 2
From Year=1904 To Year=1967
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	449	371	334	219	134	38	1	2	13	81	223	363	2226
60	304	243	206	122	56	9	0	0	2	32	123	227	1321
57	226	175	143	78	28	3	0	0	0	15	78	159	905
55	180	135	108	54	17	1	0	0	0	8	55	120	677
50	90	57	43	18	3	0	0	0	0	1	17	50	280

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