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Period of Record General Climate Summary - Growing Degree Days

Station:(473332) GURNEY
From Year=1952 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	23	119	390	642	819	771	500	236	35	1	3536
40 S	0	2	25	144	533	1175	1994	2764	3264	3500	3535	3536	3536
45 M	0	0	9	63	261	493	664	616	356	138	14	0	2614
45 S	0	0	10	73	334	826	1490	2106	2462	2600	2614	2614	2614
50 M	0	0	4	31	158	351	509	461	229	72	5	0	1819
50 S	0	0	4	35	193	544	1053	1514	1743	1815	1819	1819	1819
55 M	0	0	1	14	87	224	356	312	130	33	1	0	1158
55 S	0	0	1	15	102	326	682	994	1124	1157	1158	1158	1158
60 M	0	0	1	5	41	124	217	179	64	13	0	0	645
60 S	0	0	1	6	47	171	388	567	632	645	645	645	645

Corn Growing Degree Days
50 M	0	1	16	85	247	396	517	478	291	135	19	1	2187
50 S	0	1	18	103	350	746	1264	1742	2033	2168	2186	2187	2187

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