LA DELLE 7 NE, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(394661) LA DELLE 7 NE
From Year=1897 To Year=1974
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	3	44	223	542	802	1021	967	647	322	38	1	4609
40 S	0	3	47	270	812	1614	2635	3601	4248	4570	4608	4609	4609
45 M	0	1	20	135	398	652	866	812	503	210	14	0	3609
45 S	0	1	21	156	553	1205	2071	2882	3385	3595	3609	3609	3609
50 M	0	0	8	72	268	503	711	657	366	122	4	0	2711
50 S	0	0	8	80	348	851	1562	2219	2585	2707	2711	2711	2711
55 M	0	0	3	34	161	359	556	503	245	61	1	0	1923
55 S	0	0	3	36	198	557	1113	1616	1862	1923	1923	1923	1923
60 M	0	0	1	12	85	229	404	354	147	25	0	0	1256
60 S	0	0	1	13	98	327	730	1084	1231	1256	1256	1256	1256

Corn Growing Degree Days
50 M	1	4	40	162	348	510	661	627	422	229	38	2	3043
50 S	1	5	44	206	555	1064	1725	2352	2774	3002	3041	3043	3043

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