HERMISTON 2 S, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(353847) HERMISTON 2 S
From Year=1928 To Year=1997
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1029	772	604	371	173	48	8	11	104	390	724	943	5177
60	874	631	449	232	78	10	1	1	39	247	574	788	3924
57	781	547	358	159	39	3	0	0	18	173	484	695	3258
55	720	490	298	117	22	1	0	0	10	130	426	633	2847
50	566	353	164	41	3	0	0	0	2	51	285	481	1946

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