NEW LONDON, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(215842) NEW LONDON
From Year=1893 To Year=2009
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	27	201	535	801	995	922	624	283	36	1	4425
40 S	0	1	28	228	763	1565	2560	3481	4106	4389	4424	4425	4425
45 M	0	0	11	117	389	652	840	767	477	173	13	0	3437
45 S	0	0	11	127	516	1167	2008	2774	3251	3424	3437	3437	3437
50 M	0	0	4	60	257	503	685	612	338	92	4	0	2554
50 S	0	0	4	64	321	824	1509	2121	2459	2551	2554	2554	2554
55 M	0	0	1	27	150	359	530	457	215	41	1	0	1781
55 S	0	0	1	28	178	537	1067	1525	1739	1780	1781	1781	1781
60 M	0	0	0	10	75	226	377	307	118	14	0	0	1128
60 S	0	0	0	10	85	312	688	996	1114	1128	1128	1128	1128

Corn Growing Degree Days
50 M	0	1	20	129	321	507	660	601	380	168	22	1	2809
50 S	0	1	21	149	470	977	1637	2238	2617	2785	2808	2809	2809

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