DAYTON 1 WSW, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(452030) DAYTON 1 WSW
From Year=1931 To Year=2005
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	4	31	125	267	493	460	230	45	1	0	1657
57	0	0	2	19	93	216	431	399	182	29	0	0	1372
60	0	0	0	9	55	149	341	310	121	13	0	0	998
65	0	0	0	1	19	69	204	177	49	2	0	0	523
70	0	0	0	0	5	24	100	80	14	0	0	0	223

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 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