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Period of Record General Climate Summary - Cooling Degree Days

Station:(470124) ALMA DAM 4
From Year=1940 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	0	0	3	39	186	412	565	498	242	63	3	0	2012
57	0	0	2	28	145	354	503	437	196	45	1	0	1710
60	0	0	1	15	96	271	410	345	135	25	0	0	1299
65	0	0	0	5	41	149	259	203	63	8	0	0	729
70	0	0	0	1	13	63	130	92	22	2	0	0	321

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