ONTARIO KSRV, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356294) ONTARIO KSRV
From Year=1903 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	6	24	141	332	618	836	1133	1044	701	341	60	9	5245
40 S	6	30	171	503	1121	1957	3090	4134	4835	5176	5237	5245	5245
45 M	1	4	54	198	464	686	978	889	551	204	18	2	4049
45 S	1	5	59	257	721	1408	2385	3274	3825	4029	4047	4049	4049
50 M	0	0	14	96	317	536	823	734	404	99	4	0	3027
50 S	0	0	14	111	428	964	1787	2521	2924	3023	3026	3027	3027
55 M	0	0	2	35	189	389	668	579	265	37	0	0	2164
55 S	0	0	2	38	227	616	1283	1862	2127	2164	2164	2164	2164
60 M	0	0	0	9	93	253	513	426	146	9	0	0	1449
60 S	0	0	0	9	102	355	868	1294	1440	1449	1449	1449	1449

Corn Growing Degree Days
50 M	2	19	112	239	396	518	679	629	467	264	43	4	3371
50 S	2	21	134	372	769	1286	1965	2594	3061	3324	3367	3371	3371

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