DAVENPORT, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452007) DAVENPORT
From Year=1948 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	1247	974	849	596	377	190	67	71	228	585	923	1195	7301
60	1092	833	694	447	240	93	21	22	123	432	773	1040	5809
57	999	748	601	360	169	53	9	9	77	344	683	947	4998
55	937	692	539	304	128	34	4	4	53	288	623	885	4490
50	782	551	385	175	52	6	0	1	16	163	474	730	3334

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