RIVERSIDE FIRE STA 3, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047470) RIVERSIDE FIRE STN 3
From Year=1893 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	376	292	249	142	59	9	0	0	4	51	200	358	1740
60	229	164	123	52	12	1	0	0	1	11	89	211	893
57	153	100	67	22	4	0	0	0	1	4	46	135	531
55	110	66	41	11	2	0	0	0	1	1	27	94	353
50	39	17	8	1	0	0	0	0	1	0	5	27	98

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