ALKALI LAKE, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(350118) ALKALI LAKE
From Year=1961 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	1062	867	831	633	406	189	51	66	234	537	832	1076	6783
60	907	725	676	485	268	98	16	23	125	384	682	921	5309
57	814	641	584	399	196	59	7	10	79	299	592	828	4506
55	752	584	522	343	153	40	4	5	57	247	532	766	4005
50	597	444	371	216	71	11	0	0	21	136	385	611	2864

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