HILLSBORO 3 N, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(324203) HILLSBORO 3 N
From Year=1905 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	1	18	167	490	753	948	885	558	237	19	0	4076
40 S	0	1	18	185	675	1428	2376	3261	3820	4057	4076	4076	4076
45 M	0	0	6	91	348	603	793	730	414	138	5	0	3130
45 S	0	0	7	97	446	1049	1842	2572	2986	3124	3130	3130	3130
50 M	0	0	2	43	224	454	638	576	282	69	1	0	2288
50 S	0	0	2	45	269	724	1361	1937	2218	2287	2288	2288	2288
55 M	0	0	1	17	127	311	483	422	170	28	0	0	1558
55 S	0	0	1	18	144	455	938	1360	1530	1558	1558	1558	1558
60 M	0	0	0	5	60	184	331	275	88	9	0	0	952
60 S	0	0	0	5	65	249	580	855	944	952	952	952	952

Corn Growing Degree Days
50 M	0	0	14	113	305	470	617	567	344	151	15	0	2594
50 S	0	0	14	127	432	901	1518	2085	2428	2579	2594	2594	2594

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