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Period of Record General Climate Summary - Growing Degree Days

Station:(215488) MINNESOTA CITY DAM 5
From Year=1939 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	1	2	57	264	642	895	1071	986	678	380	38	5	5021
40 S	1	3	60	324	966	1861	2933	3919	4597	4978	5016	5021	5021
45 M	0	0	31	155	489	745	916	831	530	249	13	1	3962
45 S	0	1	31	186	675	1420	2337	3168	3698	3948	3960	3962	3962
50 M	0	0	17	77	342	595	761	676	386	142	3	0	2998
50 S	0	0	17	93	435	1030	1792	2468	2854	2995	2998	2998	2998
55 M	0	0	8	33	212	447	606	521	255	64	1	0	2147
55 S	0	0	8	41	253	700	1306	1828	2082	2147	2147	2147	2147
60 M	0	0	3	11	114	305	451	368	149	24	0	0	1425
60 S	0	0	3	14	129	434	885	1253	1402	1425	1425	1425	1425

Corn Growing Degree Days
50 M	0	1	32	145	378	584	733	664	409	197	15	2	3161
50 S	0	1	33	178	556	1140	1873	2537	2946	3143	3159	3161	3161

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