PORT ANGELES, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456624) PORT ANGELES
From Year=1948 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	789	660	660	519	381	249	166	162	236	454	629	759	5665
60	634	519	505	370	231	115	49	44	104	299	479	604	3953
57	541	434	412	281	149	52	12	10	47	209	389	511	3047
55	479	377	350	223	101	24	4	3	23	154	329	449	2515
50	325	237	198	93	22	1	0	0	2	49	184	295	1405

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