COOKE CITY 2 W, MONTANA

Period of Record General Climate Summary - Heating Degree Days

Station:(241995) COOKE CITY 2 W
From Year=1967 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	1571	1331	1258	1002	749	476	270	322	564	911	1282	1576	11314
60	1416	1190	1103	852	594	328	131	174	414	756	1132	1421	9512
57	1323	1105	1010	762	501	245	69	100	326	663	1042	1328	8476
55	1261	1049	948	702	439	194	42	65	269	601	982	1266	7819
50	1106	907	793	552	290	93	10	17	148	447	832	1111	6306

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