COLGATE, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(321686) COLGATE
From Year=1914 To Year=2011
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	0	14	155	484	733	912	857	527	195	18	1	3896
40 S	0	0	14	169	653	1386	2298	3155	3682	3877	3895	3896	3896
45 M	0	0	4	82	343	584	757	702	384	104	5	0	2965
45 S	0	0	4	86	429	1013	1769	2471	2855	2959	2964	2965	2965
50 M	0	0	1	40	219	435	602	547	255	46	1	0	2145
50 S	0	0	1	40	259	694	1296	1843	2098	2144	2145	2145	2145
55 M	0	0	0	16	123	291	447	395	148	17	0	0	1437
55 S	0	0	0	16	139	431	877	1272	1420	1437	1437	1437	1437
60 M	0	0	0	5	57	167	296	251	75	5	0	0	857
60 S	0	0	0	5	63	230	526	778	852	857	857	857	857

Corn Growing Degree Days
50 M	0	0	12	118	313	460	588	548	334	137	17	1	2528
50 S	0	0	13	130	443	902	1491	2038	2372	2509	2526	2528	2528

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