ELLENSBURG FAA AIRPORT, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452508) ELLENSBURG FAA AIRPORT
From Year=1940 To Year=1959
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1291	949	821	529	285	143	30	38	175	517	891	1120	6788
60	1136	808	666	380	158	54	6	6	80	366	741	965	5366
57	1043	724	573	294	99	23	2	1	44	280	651	872	4606
55	981	668	511	239	68	11	1	1	27	226	591	810	4132
50	826	527	359	117	20	0	0	0	4	114	441	655	3062

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