WINTERS, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049742) WINTERS
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	588	389	301	157	51	7	0	0	5	67	322	567	2455
60	433	250	166	69	14	1	0	0	0	19	185	412	1549
57	341	172	100	36	5	0	0	0	0	6	117	320	1098
55	281	125	66	22	2	0	0	0	0	3	81	260	840
50	144	41	17	4	0	0	0	0	0	0	23	128	357

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