OKLEE, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(216148) OKLEE
From Year=1939 To Year=1996
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	0	8	125	457	704	858	812	461	171	15	0	3611
40 S	0	0	8	133	590	1295	2152	2965	3426	3596	3611	3611	3611
45 M	0	0	2	63	320	555	703	657	324	88	5	0	2715
45 S	0	0	2	65	384	939	1642	2299	2623	2711	2715	2715	2715
50 M	0	0	0	30	201	407	548	502	202	38	1	0	1928
50 S	0	0	0	30	230	637	1185	1687	1890	1928	1928	1928	1928
55 M	0	0	0	11	111	266	394	351	109	14	0	0	1256
55 S	0	0	0	11	123	389	783	1133	1242	1256	1256	1256	1256
60 M	0	0	0	3	52	147	246	213	50	4	0	0	715
60 S	0	0	0	3	56	202	448	661	711	715	715	715	715

Corn Growing Degree Days
50 M	0	0	6	93	290	437	552	517	285	112	10	0	2303
50 S	0	0	6	99	389	827	1378	1895	2180	2293	2302	2303	2303

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