NEEDLES AP, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(046118) NEEDLES FAA AIRPORT
From Year=1948 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	48	114	268	487	792	1053	1279	1219	975	616	215	42	7107
57	28	80	215	428	730	993	1217	1157	915	554	168	23	6507
60	10	41	146	343	637	903	1124	1064	825	463	106	7	5668
65	1	9	61	213	484	753	969	909	675	317	37	1	4428
70	0	1	17	109	338	603	814	754	525	189	7	0	3356

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