EDMUNDS ARROWWOOD RE, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(322536) EDMUNDS ARROWWOOD REF
From Year=1974 To Year=2008
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	1	18	184	501	740	942	865	542	227	29	0	4049
40 S	0	1	19	203	704	1444	2386	3250	3792	4020	4049	4049	4049
45 M	0	0	4	103	358	590	787	710	399	128	9	0	3087
45 S	0	0	4	107	466	1055	1842	2552	2950	3078	3087	3087	3087
50 M	0	0	1	52	230	440	632	555	267	61	2	0	2240
50 S	0	0	1	53	282	723	1354	1909	2176	2238	2240	2240	2240
55 M	0	0	0	23	128	296	477	401	157	24	0	0	1507
55 S	0	0	0	23	151	448	924	1326	1482	1507	1507	1507	1507
60 M	0	0	0	8	57	170	324	256	79	7	0	0	900
60 S	0	0	0	8	65	234	558	814	893	900	900	900	900

Corn Growing Degree Days
50 M	0	2	18	140	318	461	610	551	345	165	29	0	2639
50 S	0	2	20	160	478	939	1548	2100	2445	2610	2639	2639	2639

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