HANKINSON, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(323908) HANKINSON RAILROAD STN
From Year=1929 To Year=1993
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	2	17	167	509	778	988	911	552	248	27	1	4201
40 S	0	2	19	186	696	1474	2461	3372	3925	4173	4200	4201	4201
45 M	0	0	6	93	368	628	833	756	408	147	9	0	3249
45 S	0	0	6	99	467	1095	1928	2684	3092	3240	3249	3249	3249
50 M	0	0	2	46	243	480	678	601	277	76	2	0	2404
50 S	0	0	2	48	291	770	1448	2049	2326	2402	2404	2404	2404
55 M	0	0	0	20	142	336	523	447	168	32	0	0	1669
55 S	0	0	0	20	162	499	1022	1469	1637	1669	1669	1669	1669
60 M	0	0	0	7	70	206	371	299	88	11	0	0	1053
60 S	0	0	0	7	77	283	654	954	1042	1053	1053	1053	1053

Corn Growing Degree Days
50 M	1	2	17	118	313	484	642	581	341	174	25	1	2698
50 S	1	2	19	137	450	934	1576	2157	2498	2671	2696	2698	2698

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