ELK CITY RANGER STN, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(102875) ELK CITY RANGER STN
From Year=1950 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	1292	1056	1006	759	540	310	149	174	379	684	1004	1294	8648
60	1137	915	851	609	388	183	58	71	238	529	854	1139	6973
57	1044	830	758	520	303	121	28	34	164	437	764	1046	6049
55	982	774	696	460	249	87	16	20	123	376	704	984	5471
50	827	632	541	316	135	31	3	4	51	235	554	829	4158

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