date! ,

Period of Record General Climate Summary - Growing Degree Days

Station:(211840) COTTON 3 E
From Year=1962 To Year=2002
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	10	93	361	608	780	702	412	156	16	0	3139
40 S	0	0	10	104	465	1073	1852	2555	2967	3123	3139	3139	3139
45 M	0	0	2	45	233	459	625	547	276	80	5	0	2272
45 S	0	0	2	47	280	739	1364	1911	2187	2267	2272	2272	2272
50 M	0	0	0	18	134	314	470	394	162	33	1	0	1528
50 S	0	0	0	18	153	467	937	1331	1494	1527	1528	1528	1528
55 M	0	0	0	6	68	188	318	250	82	11	0	0	923
55 S	0	0	0	6	75	262	581	831	912	923	923	923	923
60 M	0	0	0	2	28	93	180	132	34	2	0	0	471
60 S	0	0	0	2	30	123	303	435	469	471	471	471	471

Corn Growing Degree Days
50 M	0	1	10	85	250	386	501	446	257	99	11	0	2047
50 S	0	1	11	96	346	732	1234	1680	1936	2036	2046	2047	2047

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