UPPER LAKE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049173) UPPER LAKE
From Year=1893 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	1	3	23	63	158	339	543	508	345	143	14	1	2141
57	0	1	12	40	117	283	481	446	287	103	6	0	1778
60	0	0	3	18	70	204	389	354	205	55	1	0	1300
65	0	0	0	2	21	99	240	206	95	13	0	0	677
70	0	0	0	0	3	33	114	87	29	1	0	0	268

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