ROSEMOUNT AGR EXP STN, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(217107) ROSEMOUNT AGRI EXP STN
From Year=1950 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	2	40	225	566	830	988	914	624	305	47	2	4543
40 S	0	2	41	267	832	1662	2651	3565	4189	4493	4540	4543	4543
45 M	0	0	18	132	416	680	833	759	475	190	19	1	3524
45 S	0	0	18	150	566	1247	2080	2839	3314	3505	3523	3524	3524
50 M	0	0	8	68	279	530	678	604	334	106	6	0	2613
50 S	0	0	8	75	354	885	1563	2167	2501	2606	2613	2613	2613
55 M	0	0	3	31	165	383	523	450	209	51	1	0	1816
55 S	0	0	3	33	198	581	1105	1554	1763	1814	1816	1816	1816
60 M	0	0	1	12	84	245	369	299	113	20	0	0	1142
60 S	0	0	1	13	96	341	710	1009	1122	1142	1142	1142	1142

Corn Growing Degree Days
50 M	0	1	27	146	343	532	659	599	381	184	29	1	2902
50 S	0	1	28	174	517	1048	1707	2306	2688	2872	2900	2902	2902

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