KENNEWICK, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(454154) KENNEWICK
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	974	717	568	332	143	29	2	4	74	365	680	921	4811
60	819	576	414	196	55	4	0	0	23	224	531	766	3608
57	726	491	322	125	24	1	0	0	9	152	442	674	2966
55	664	435	264	86	12	0	0	0	5	110	384	612	2572
50	512	300	135	22	1	0	0	0	0	40	248	459	1717

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