ASTORIA, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(350324) ASTORIA
From Year=1892 To Year=1960
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	744	614	605	468	350	225	134	117	182	334	529	672	4973
60	589	473	450	319	202	89	25	17	61	186	379	517	3307
57	496	388	358	233	121	33	4	1	20	108	290	425	2475
55	434	332	298	178	75	13	1	0	7	66	231	363	1996
50	282	194	155	63	11	0	0	0	0	11	102	211	1029

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