SPRAGUE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(457956) SPRAGUE
From Year=1948 To Year=1982
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1221	893	791	546	320	136	38	54	209	542	867	1087	6703
60	1066	752	636	398	190	59	9	16	107	389	717	932	5270
57	973	667	543	312	127	29	3	6	64	301	627	839	4491
55	911	611	481	257	92	16	1	3	43	247	567	777	4004
50	756	469	330	137	31	2	0	0	12	131	417	622	2908

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