LEAVENWORTH 3 S, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(454572) LEAVENWORTH 3 S
From Year=1914 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	1229	942	770	499	284	121	29	30	172	500	866	1173	6615
60	1074	800	615	352	157	43	5	5	80	349	716	1018	5215
57	981	716	522	267	98	17	1	1	43	264	626	925	4461
55	919	659	461	214	66	8	0	0	26	211	566	863	3993
50	764	518	308	100	17	0	0	0	5	101	416	708	2938

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