EUGENE WSO AIRPORT, OREGON

Period of Record General Climate Summary - Cooling Degree Days

Station:(352709) EUGENE WSO AIRPORT
From Year=1939 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	1	1	3	15	75	181	367	360	218	43	3	0	1267
57	0	0	1	7	48	132	305	299	165	24	1	0	983
60	0	0	0	2	22	74	216	208	98	9	0	0	630
65	0	0	0	0	4	23	93	85	29	1	0	0	234
70	0	0	0	0	0	5	28	22	5	0	0	0	60

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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