YAKIMA WSO AP, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(459465) YAKIMA WSO AP
From Year=1946 To Year=2006
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	1	21	132	287	476	434	197	23	1	0	1571
57	0	0	0	12	98	233	415	373	151	13	0	0	1295
60	0	0	0	5	57	163	325	283	94	5	0	0	931
65	0	0	0	1	18	74	191	153	30	0	0	0	467
70	0	0	0	0	4	25	88	63	5	0	0	0	185

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