TOWER 2S, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(218311) TOWER 3 S
From Year=1895 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	0	0	10	83	337	566	735	650	377	130	11	0	2900
40 S	0	0	10	93	430	997	1732	2382	2759	2889	2900	2900	2900
45 M	0	0	3	40	215	419	580	496	246	63	3	0	2066
45 S	0	0	3	44	258	677	1257	1753	1999	2062	2066	2066	2066
50 M	0	0	1	17	121	281	426	345	141	26	1	0	1360
50 S	0	0	1	18	140	420	846	1192	1333	1359	1360	1360	1360
55 M	0	0	1	6	58	162	278	208	69	9	0	0	790
55 S	0	0	1	7	65	227	505	712	782	790	790	790	790
60 M	0	0	0	2	24	76	151	101	28	2	0	0	385
60 S	0	0	0	2	26	102	253	354	383	385	385	385	385

Corn Growing Degree Days
50 M	0	0	11	80	249	371	478	427	251	92	9	0	1970
50 S	0	0	11	92	341	712	1190	1617	1868	1961	1970	1970	1970

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