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Period of Record General Climate Summary - Growing Degree Days

Station:(473038) GENOA DAM 8
From Year=1936 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	4	59	276	618	875	1039	978	688	378	75	6	4995
40 S	1	4	63	339	957	1831	2871	3849	4537	4915	4990	4995	4995
45 M	0	1	29	168	465	725	884	823	539	246	34	2	3916
45 S	0	1	30	198	663	1388	2272	3095	3634	3880	3914	3916	3916
50 M	0	0	13	91	320	575	729	668	393	142	12	0	2945
50 S	0	0	13	105	425	1000	1730	2398	2790	2932	2945	2945	2945
55 M	0	0	5	44	195	426	574	513	257	69	4	0	2088
55 S	0	0	5	49	244	670	1245	1758	2015	2084	2088	2088	2088
60 M	0	0	2	18	101	283	420	359	146	27	1	0	1357
60 S	0	0	2	20	121	404	824	1183	1330	1356	1357	1357	1357

Corn Growing Degree Days
50 M	0	2	35	157	367	573	710	656	419	207	37	3	3167
50 S	0	2	37	194	562	1134	1844	2500	2919	3127	3164	3167	3167

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