BONNERS FERRY, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(101079) BONNERS FERRY
From Year=1907 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	1223	969	842	543	322	150	47	59	247	601	909	1142	7054
60	1068	828	687	394	186	59	11	17	128	446	759	987	5570
57	975	743	594	307	120	27	4	6	77	355	669	894	4770
55	913	687	532	251	83	14	2	3	52	295	609	832	4273
50	758	546	378	128	24	2	0	0	15	163	459	677	3149

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