FOSSTON, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(212916) FOSSTON 1 E
From Year=1909 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	0	13	138	444	700	875	811	496	210	20	0	3707
40 S	0	0	13	151	595	1295	2169	2980	3477	3687	3707	3707	3707
45 M	0	0	4	73	308	550	720	656	356	123	6	0	2797
45 S	0	0	4	78	385	935	1655	2311	2667	2791	2797	2797	2797
50 M	0	0	1	35	192	403	565	502	233	63	1	0	1995
50 S	0	0	1	36	228	632	1196	1698	1931	1994	1995	1995	1995
55 M	0	0	0	14	107	265	411	352	134	27	0	0	1311
55 S	0	0	0	14	121	386	797	1149	1283	1310	1311	1311	1311
60 M	0	0	0	4	50	149	265	214	67	9	0	0	758
60 S	0	0	0	4	55	203	468	682	749	758	758	758	758

Corn Growing Degree Days
50 M	0	0	10	96	277	432	563	515	301	131	13	0	2338
50 S	0	0	10	106	383	816	1378	1893	2194	2326	2338	2338	2338

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