TIETON INTAKE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(458442) TIETON INTAKE
From Year=1948 To Year=1972
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1216	936	905	650	425	218	93	103	260	596	907	1147	7455
60	1061	794	750	500	279	109	33	35	142	441	757	992	5895
57	968	710	657	411	202	61	14	15	89	351	667	899	5043
55	906	653	595	353	157	36	7	6	61	293	607	837	4511
50	751	512	440	213	68	5	1	0	18	164	457	682	3312

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 Jul 28, 2006
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