AMERICAN FALLS 1 SW, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(100227) AMERICAN FALLS 1 SW
From Year=1948 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	1250	1006	851	554	319	117	14	22	171	496	862	1175	6838
60	1095	865	696	407	190	48	2	5	83	347	712	1020	5470
57	1002	780	603	322	128	24	0	2	49	264	622	927	4723
55	940	723	541	269	93	14	0	1	33	215	563	865	4256
50	785	582	389	151	35	2	0	0	11	113	415	710	3193

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