CLEARBROOK, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451484) CLEARBROOK
From Year=1931 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	891	710	656	483	326	182	98	102	215	454	677	841	5636
60	736	569	501	334	183	65	19	21	91	300	527	686	4033
57	643	484	409	248	109	23	4	5	43	213	438	593	3211
55	581	428	347	193	69	10	1	1	23	159	378	532	2722
50	426	288	198	77	13	0	0	0	3	59	234	378	1676

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