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Period of Record General Climate Summary - Growing Degree Days

Station:(219170) WORTHINGTON 2 NNE
From Year=1971 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	3	44	203	536	821	990	885	597	269	49	2	4399
40 S	0	4	48	251	787	1608	2598	3483	4080	4349	4397	4399	4399
45 M	0	1	20	117	390	671	835	730	451	163	21	1	3399
45 S	0	1	20	138	528	1199	2034	2764	3215	3378	3399	3399	3399
50 M	0	0	7	60	259	521	680	575	313	87	7	0	2511
50 S	0	0	7	68	327	849	1529	2104	2417	2504	2511	2511	2511
55 M	0	0	2	29	153	375	525	421	195	40	1	0	1741
55 S	0	0	2	31	184	559	1084	1505	1700	1739	1741	1741	1741
60 M	0	0	1	11	77	239	372	273	106	15	0	0	1094
60 S	0	0	1	12	89	328	699	973	1078	1094	1094	1094	1094

Corn Growing Degree Days
50 M	1	3	31	134	318	519	657	572	369	171	34	1	2811
50 S	1	4	35	169	487	1007	1664	2236	2604	2776	2810	2811	2811

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