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Period of Record General Climate Summary - Growing Degree Days

Station:(476357) OWEN
From Year=1946 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	0	22	156	454	707	871	803	508	226	32	1	3781
40 S	0	0	23	179	632	1339	2210	3013	3521	3747	3779	3781	3781
45 M	0	0	10	85	314	557	716	648	365	131	12	0	2839
45 S	0	0	10	95	409	966	1682	2331	2695	2827	2838	2839	2839
50 M	0	0	4	41	195	409	561	494	237	67	3	0	2012
50 S	0	0	4	45	240	649	1211	1704	1941	2009	2012	2012	2012
55 M	0	0	2	18	106	271	407	343	135	29	1	0	1310
55 S	0	0	2	19	125	396	803	1146	1281	1310	1310	1310	1310
60 M	0	0	0	6	49	153	260	204	67	10	0	0	750
60 S	0	0	0	7	56	209	469	674	740	750	750	750	750

Corn Growing Degree Days
50 M	0	0	14	98	272	437	563	509	305	136	19	1	2355
50 S	0	0	14	113	384	822	1385	1894	2200	2336	2354	2355	2355

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