HUNTLEY EXP STN, MONTANA

Period of Record General Climate Summary - Heating Degree Days

Station:(244345) HUNTLEY EXPERIMENT STN
From Year=1911 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	1372	1110	954	586	327	117	21	37	237	563	943	1274	7543
60	1217	969	799	440	202	49	5	11	136	413	793	1119	6154
57	1124	884	706	357	142	25	2	4	92	328	703	1026	5394
55	1062	827	645	305	108	15	1	2	68	276	644	964	4918
50	907	687	495	191	47	3	0	0	30	167	496	809	3832

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