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Period of Record General Climate Summary - Heating Degree Days

Station:(215392) MILACA 1 ENE
From Year=1897 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1717	1425	1164	659	311	91	21	46	233	572	1038	1525	8802
60	1562	1284	1010	514	191	34	3	12	130	424	888	1370	7420
57	1469	1199	917	429	133	17	1	4	83	341	798	1277	6667
55	1407	1142	855	375	101	10	0	2	59	289	738	1215	6192
50	1252	1001	702	250	44	1	0	0	21	176	590	1060	5097

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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