COULEE DAM 1 SW, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(451767) COULEE DAM 1 SW
From Year=1934 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	0	26	149	318	557	524	274	40	0	0	1889
57	0	0	0	15	111	262	496	463	223	26	0	0	1595
60	0	0	0	6	66	186	404	371	155	11	0	0	1199
65	0	0	0	1	22	90	259	229	69	2	0	0	671
70	0	0	0	0	5	34	138	114	21	0	0	0	312

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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