BLAINE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(450729) BLAINE
From Year=1893 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	872	710	673	505	352	193	106	118	252	477	665	825	5747
60	717	569	519	355	201	67	18	22	115	322	515	670	4090
57	624	484	426	266	120	23	3	4	56	232	425	577	3239
55	562	428	364	208	75	9	1	1	30	175	365	515	2732
50	407	288	213	83	12	0	0	0	4	65	221	361	1654

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 Oct 31, 2012
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