NEEDLES FAA AIRPORT, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(046118) NEEDLES FAA AIRPORT
From Year=1948 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	47	115	268	482	784	1045	1271	1209	967	616	209	43	7056
57	27	81	215	423	722	985	1209	1147	907	554	162	23	6456
60	10	42	146	339	629	895	1116	1054	817	463	102	7	5620
65	1	9	62	210	476	745	961	899	667	318	34	1	4383
70	0	1	18	106	331	595	806	744	518	190	6	0	3315

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