YUMA CITRUS STN, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(029652) YUMA CITRUS STATION
From Year=1920 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	46	110	240	411	651	867	1117	1103	900	576	212	54	6288
57	25	76	188	353	589	807	1055	1041	840	515	163	29	5681
60	7	38	120	270	496	717	962	948	750	424	101	9	4843
65	0	7	42	149	346	567	807	793	600	279	32	1	3624
70	0	0	8	62	208	418	652	638	450	154	5	0	2595

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