OLYMPIA PRIEST PT PA, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456109) OLYMPIA PRIEST PT PARK
From Year=1895 To Year=1955
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	828	681	640	462	306	166	74	71	190	404	607	758	5188
60	673	540	485	314	167	59	12	11	74	252	457	603	3648
57	580	455	392	229	99	22	2	2	31	168	368	510	2860
55	518	399	331	176	62	9	1	0	15	119	308	448	2388
50	365	260	185	69	11	0	0	0	1	35	168	295	1390

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