NEWPORT, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455844) NEWPORT
From Year=1909 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1246	1005	871	594	368	186	60	81	278	613	930	1173	7404
60	1091	864	716	445	227	83	15	23	153	458	780	1018	5873
57	998	779	623	358	155	43	5	9	96	367	690	925	5047
55	936	723	561	301	114	25	2	4	66	309	630	863	4533
50	781	582	407	171	41	4	0	0	21	176	480	708	3371

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