PROSSER 4 NE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456768) PROSSER 4 NE
From Year=1931 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1048	794	639	412	217	79	18	22	126	409	756	990	5511
60	893	653	484	270	108	24	3	3	51	264	606	835	4195
57	800	568	392	193	61	8	1	1	25	187	516	742	3495
55	738	512	333	147	38	3	0	0	14	141	457	680	3064
50	584	373	194	59	7	0	0	0	3	57	313	526	2115

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 Jul 28, 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