SIERRAVILLE RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(048218) SIERRAVILLE RANGER STN
From Year=1948 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1151	916	861	636	426	212	79	102	235	498	797	1069	6981
60	996	774	706	486	282	106	21	30	117	346	647	914	5425
57	903	689	613	397	206	62	8	11	70	260	557	821	4599
55	841	633	551	340	162	41	4	5	48	209	497	759	4090
50	686	492	398	210	77	12	1	1	15	104	350	604	2950

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 Apr 5, 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