MCCALL, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(105708) MCCALL
From Year=1905 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	1382	1159	1098	809	550	318	110	150	375	691	1019	1315	8976
60	1227	1017	943	659	399	189	38	59	236	537	869	1160	7332
57	1134	933	850	570	313	125	17	30	166	445	779	1067	6428
55	1072	876	788	510	259	91	10	19	126	384	719	1005	5858
50	917	735	633	364	142	33	2	5	55	242	569	850	4546

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