YUMA DATE ORCHARD, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(029653) YUMA DATE ORCHARD
From Year=1905 To Year=1929
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	33	83	197	342	545	751	993	986	780	448	157	31	5346
57	16	54	147	284	483	691	931	924	720	388	112	16	4765
60	4	23	87	202	391	601	838	831	630	300	59	3	3969
65	0	3	25	89	241	451	683	676	480	168	13	0	2828
70	0	0	3	26	112	302	528	521	332	69	1	0	1894

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