DALLESPORT FCWOS AP, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451968) DALLESPORT FCWOS AP
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	942	708	585	367	171	50	6	6	64	341	670	891	4802
60	787	567	430	226	73	10	0	0	17	204	520	736	3572
57	694	483	337	151	35	2	0	0	7	134	431	643	2918
55	632	426	277	107	19	1	0	0	3	95	372	582	2515
50	479	288	142	31	2	0	0	0	0	31	231	428	1633

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