MACKAY RANGER STN, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(105462) MACKAY RANGER STN
From Year=1931 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1473	1213	1057	699	449	222	47	73	277	617	1034	1393	8553
60	1318	1071	902	549	301	114	12	22	153	462	884	1238	7027
57	1225	987	809	460	221	70	5	9	98	371	794	1145	6194
55	1163	930	747	401	175	47	2	5	71	314	734	1083	5672
50	1008	789	592	263	84	14	0	1	27	186	584	928	4476

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 Jul 28, 2006
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