ANDREWS WESTON MINE, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(350189) ANDREWS 7 NNE
From Year=1969 To Year=1993
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1091	847	771	556	357	123	20	29	160	432	797	1056	6239
60	936	706	616	413	230	61	5	10	86	294	647	901	4905
57	843	621	523	333	165	37	2	4	56	222	557	808	4172
55	781	565	462	282	129	25	1	2	40	180	498	746	3710
50	626	425	316	172	59	6	0	0	14	99	354	591	2663

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