MAZAMA, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455133) MAZAMA
From Year=1950 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	1360	1068	916	614	371	166	52	57	238	640	1029	1364	7875
60	1205	927	761	465	231	73	14	16	128	486	879	1209	6393
57	1112	842	668	377	157	37	5	5	79	396	789	1116	5583
55	1050	786	606	319	115	21	2	2	55	338	729	1054	5077
50	895	644	451	185	41	3	0	0	16	204	579	899	3919

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