PROSSER, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(456763) PROSSER
From Year=1912 To Year=1963
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	1	4	50	184	352	546	485	249	43	1	0	1916
57	0	0	2	31	140	294	484	423	196	25	0	0	1596
60	0	0	0	13	86	213	392	331	126	9	0	0	1170
65	0	0	0	2	29	103	243	187	44	1	0	0	609
70	0	0	0	0	7	37	119	75	8	0	0	0	247

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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