MILBANK 2 SSW, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(395536) MILBANK
From Year=1893 To Year=2009
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	33	200	531	798	995	930	620	301	42	2	4454
40 S	1	3	36	236	767	1565	2560	3490	4110	4411	4452	4454	4454
45 M	0	0	13	117	386	648	840	775	474	191	16	0	3461
45 S	0	0	14	131	516	1164	2004	2779	3254	3444	3460	3461	3461
50 M	0	0	5	61	256	499	685	620	336	108	5	0	2574
50 S	0	0	5	66	322	821	1506	2126	2462	2570	2574	2574	2574
55 M	0	0	2	28	151	355	530	466	215	52	1	0	1799
55 S	0	0	2	29	181	535	1065	1531	1747	1798	1799	1799	1799
60 M	0	0	0	10	77	222	377	317	122	21	0	0	1145
60 S	0	0	0	10	87	309	686	1003	1125	1145	1145	1145	1145

Corn Growing Degree Days
50 M	1	3	28	138	326	503	650	601	389	197	34	3	2874
50 S	1	4	32	171	497	1000	1650	2251	2640	2837	2872	2874	2874

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