SIERRA CITY, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(048207) SIERRA CITY
From Year=1948 To Year=2000
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	850	711	705	519	326	129	22	35	109	324	625	830	5185
60	695	570	550	373	201	58	5	9	47	198	477	675	3858
57	602	486	458	292	142	33	2	4	26	137	389	582	3152
55	540	430	397	242	109	22	1	2	18	104	333	520	2717
50	388	294	254	138	50	6	0	0	5	46	206	369	1756

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