ARLINGTON 1 W, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(390281) ARLINGTON 1 W
From Year=1928 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	4	59	223	542	807	990	918	638	289	50	2	4521
40 S	0	4	63	286	828	1635	2624	3543	4180	4469	4519	4521	4521
45 M	0	1	29	130	394	657	835	763	490	180	21	1	3500
45 S	0	1	29	160	554	1211	2046	2809	3299	3478	3499	3500	3500
50 M	0	0	11	64	261	508	680	608	348	99	6	0	2586
50 S	0	0	11	75	336	844	1523	2132	2480	2579	2586	2586	2586
55 M	0	0	4	27	150	361	525	454	223	48	2	0	1792
55 S	0	0	4	31	180	541	1066	1519	1743	1790	1792	1792	1792
60 M	0	0	1	11	72	226	371	303	126	20	0	0	1130
60 S	0	0	1	12	84	310	681	984	1110	1130	1130	1130	1130

Corn Growing Degree Days
50 M	0	3	41	147	322	510	660	605	394	173	35	2	2891
50 S	0	3	45	191	513	1023	1683	2288	2682	2855	2890	2891	2891

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