TIETON INTAKE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(458442) TIETON INTAKE
From Year=1934 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	1209	942	873	612	391	207	73	87	237	576	911	1122	7240
60	1054	801	718	462	249	100	23	28	123	422	761	967	5709
57	961	716	625	374	175	53	10	11	74	333	671	874	4876
55	899	660	563	317	132	31	5	4	50	276	611	812	4360
50	744	519	409	183	52	4	1	0	14	151	461	657	3195

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