OLTON, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(416644) OLTON
From Year=1928 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	81	118	278	523	806	1032	1148	1096	847	563	250	93	6835
40 S	81	199	478	1000	1806	2838	3986	5082	5929	6492	6742	6835	6835
45 M	31	55	165	381	652	882	993	941	697	415	146	37	5396
45 S	31	86	251	633	1284	2166	3159	4100	4797	5212	5359	5396	5396
50 M	8	19	81	251	499	732	838	786	549	277	70	10	4119
50 S	8	27	108	360	859	1590	2428	3214	3763	4040	4110	4119	4119
55 M	1	4	31	143	352	582	683	631	404	157	23	1	3011
55 S	1	5	36	178	530	1112	1795	2426	2830	2987	3010	3011	3011
60 M	0	0	8	63	218	433	528	476	266	67	5	0	2065
60 S	0	0	8	72	290	723	1251	1727	1993	2060	2065	2065	2065

Corn Growing Degree Days
50 M	102	128	233	355	504	661	754	721	538	369	201	107	4674
50 S	102	230	463	818	1322	1983	2737	3458	3996	4366	4566	4674	4674

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