HERMISTON 1 SE, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(353847) HERMISTON 2 S
From Year=1906 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	1030	772	602	368	177	46	7	11	107	393	721	957	5190
60	875	631	447	229	79	9	1	1	40	248	571	802	3932
57	782	546	356	156	40	3	0	0	18	173	482	709	3264
55	720	490	296	114	22	1	0	0	10	130	423	647	2853
50	566	352	162	39	3	0	0	0	2	52	283	495	1954

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