RIGGINS, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(107706) RIGGINS
From Year=1896 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	7	50	176	339	615	599	318	75	2	0	2182
57	0	0	3	33	136	284	554	538	266	51	1	0	1866
60	0	0	1	16	87	209	462	446	195	27	0	0	1442
65	0	0	0	3	34	108	314	299	100	7	0	0	865
70	0	0	0	0	10	44	181	169	40	1	0	0	445

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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