DEER PARK 2 E, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452066) DEER PARK 2 E
From Year=1948 To Year=1977
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1276	988	898	609	355	180	55	81	264	613	920	1176	7414
60	1121	846	743	459	217	80	16	24	145	458	770	1021	5902
57	1028	761	650	371	148	40	6	9	92	366	680	928	5080
55	966	705	588	313	110	22	3	3	64	306	620	866	4567
50	811	563	434	179	41	3	0	0	19	173	470	711	3404

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