MARTINEZ WTP, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(045378) MARTINEZ WATER PLANT
From Year=1970 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	3	12	58	131	286	428	518	503	422	240	42	4	2648
57	1	5	32	90	227	368	456	441	363	184	22	1	2190
60	0	1	10	46	147	279	363	348	274	111	7	0	1588
65	0	0	1	12	60	147	211	195	138	34	0	0	799
70	0	0	0	2	19	61	87	75	49	7	0	0	300

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