TOLEDO, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(458500) TOLEDO
From Year=1950 To Year=2007
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	798	637	593	460	306	163	77	70	163	406	617	789	5079
60	643	496	438	313	172	62	16	14	63	255	467	634	3573
57	550	411	345	230	106	27	4	3	27	174	378	541	2795
55	488	355	285	178	70	12	1	1	14	127	318	479	2328
50	336	218	147	73	15	1	0	0	2	41	182	326	1340

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