VAN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358837) VAN
From Year=1959 To Year=1965
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	0	3	29	171	279	580	821	759	506	263	29	2	3442
40 S	0	3	32	203	482	1062	1883	2642	3148	3411	3440	3442	3442
45 M	0	1	7	80	154	431	666	604	359	150	5	0	2457
45 S	0	1	8	88	241	673	1339	1943	2302	2452	2457	2457	2457
50 M	0	0	0	25	67	288	511	450	226	64	0	0	1632
50 S	0	0	0	26	93	382	893	1342	1568	1632	1632	1632	1632
55 M	0	0	0	3	20	166	360	305	117	18	0	0	989
55 S	0	0	0	3	23	188	548	853	971	989	989	989	989
60 M	0	0	0	0	2	70	221	177	43	3	0	0	516
60 S	0	0	0	0	2	73	293	470	513	516	516	516	516

Corn Growing Degree Days
50 M	0	3	38	153	213	397	534	503	379	226	29	1	2476
50 S	0	3	42	194	407	804	1339	1841	2220	2446	2475	2476	2476

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