HANFORD 1 S, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(043747) HANFORD 1 S
From Year=1899 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	622	417	318	162	46	5	0	0	6	100	375	619	2670
60	467	277	180	71	12	0	0	0	1	35	233	464	1740
57	376	198	113	36	4	0	0	0	0	16	158	372	1273
55	315	149	78	21	2	0	0	0	0	9	115	312	1001
50	177	57	23	3	0	0	0	0	0	1	40	172	474

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