YUMA VALLEY, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(029657) YUMA VALLEY
From Year=1930 To Year=1992
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	45	98	219	399	628	828	1077	1060	861	555	196	49	6017
57	26	65	168	341	566	768	1015	998	801	494	149	27	5420
60	8	31	103	258	473	678	922	905	711	403	91	8	4593
65	0	5	33	138	322	528	767	750	561	261	28	1	3395
70	0	0	5	54	186	379	612	595	413	139	4	0	2387

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