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Period of Record General Climate Summary - Cooling Degree Days

Station:(475581) MONTELLO
From Year=1954 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	4	32	155	360	501	428	194	44	3	0	1722
57	0	0	3	23	120	304	439	367	153	30	1	0	1442
60	0	0	2	14	78	226	348	279	101	15	0	0	1062
65	0	0	0	5	33	116	205	149	43	3	0	0	553
70	0	0	0	1	10	45	92	57	13	1	0	0	220

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