LONGMIRE RAINIER NPS, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(456894) RAINIER LONGMIRE
From Year=1909 To Year=1978
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	2	25	79	196	187	93	15	0	0	598
57	0	0	0	1	16	55	148	140	66	8	0	0	434
60	0	0	0	0	7	29	90	82	35	3	0	0	247
65	0	0	0	0	1	7	32	26	9	0	0	0	75
70	0	0	0	0	0	1	8	5	1	0	0	0	16

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