SKAMANIA FISH HATCHERY, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(457696) SKAMANIA FISH HATCHERY
From Year=1965 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	840	683	647	520	364	211	101	99	204	441	656	842	5609
60	685	542	492	372	225	99	30	27	94	291	506	687	4049
57	592	457	399	286	152	51	10	8	48	206	417	594	3220
55	530	401	338	232	110	27	3	2	27	155	358	532	2715
50	375	262	194	113	33	3	0	0	4	59	216	378	1636

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