GRACE, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(103732) GRACE
From Year=1907 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	1384	1160	1030	687	438	209	38	59	269	603	982	1309	8169
60	1229	1019	875	537	291	105	8	16	148	449	832	1154	6662
57	1136	934	782	448	212	63	3	7	95	359	742	1061	5841
55	1074	877	720	390	166	42	1	3	69	301	682	999	5326
50	919	736	566	255	78	12	0	0	27	175	532	844	4145

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