VALSETZ, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358833) VALSETZ
From Year=1926 To Year=1986
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	60	87	124	209	386	538	689	696	560	367	150	77	3943
40 S	60	147	272	480	866	1404	2094	2790	3349	3716	3867	3943	3943
45 M	14	23	39	94	237	388	534	541	410	218	55	21	2575
45 S	14	38	77	171	408	796	1331	1872	2282	2500	2555	2575	2575
50 M	1	3	7	33	119	243	379	386	263	98	10	2	1545
50 S	1	4	12	44	163	407	786	1172	1435	1533	1543	1545	1545
55 M	0	0	1	8	47	124	228	233	135	30	1	0	807
55 S	0	0	1	9	56	180	408	642	776	806	807	807	807
60 M	0	0	0	1	14	50	105	105	47	5	0	0	326
60 S	0	0	0	1	15	65	170	274	321	326	326	326	326

Corn Growing Degree Days
50 M	16	40	70	127	236	321	426	430	345	211	61	16	2298
50 S	16	55	125	252	488	809	1235	1665	2009	2221	2281	2298	2298

M = Monthly Data
S - Running sum of monthly data.
Growing 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.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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