SEATTLE UNIV OF WASHING, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(457478) SEATTLE UNIV OF WASHING
From Year=1948 To Year=1983
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	17	101	203	340	339	201	42	2	0	1247
57	0	0	0	9	69	150	279	278	148	22	1	0	956
60	0	0	0	3	35	86	190	188	85	7	0	0	594
65	0	0	0	0	10	27	74	73	24	1	0	0	209
70	0	0	0	0	2	6	20	22	3	0	0	0	54

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