GRANITE 4 WSW, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(353430) GRANITE 4 WSW
From Year=1905 To Year=1967
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1353	1100	1097	804	624	403	200	245	401	685	1005	1263	9179
60	1198	958	942	654	470	260	89	121	260	530	855	1108	7444
57	1105	874	849	564	380	185	49	69	186	437	765	1015	6478
55	1043	817	787	505	322	142	30	45	145	376	705	953	5869
50	888	676	632	357	192	58	7	12	67	233	555	798	4477

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