TAHLEQUAH, OKLAHOMA

Period of Record General Climate Summary - Growing Degree Days

Station:(348677) TAHLEQUAH
From Year=1900 To Year=2008
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	107	155	361	623	862	1072	1250	1244	983	679	318	128	7781
40 S	107	262	622	1245	2107	3178	4429	5673	6655	7334	7652	7781	7781
45 M	53	84	239	476	707	922	1095	1089	833	526	203	63	6290
45 S	53	137	376	852	1559	2480	3576	4665	5497	6024	6227	6290	6290
50 M	23	39	143	338	552	772	940	934	683	380	116	28	4946
50 S	23	61	204	542	1094	1865	2806	3740	4423	4802	4918	4946	4946
55 M	8	15	75	215	399	622	785	779	534	248	57	10	3747
55 S	8	23	97	312	712	1333	2119	2898	3432	3680	3737	3747	3747
60 M	2	4	32	117	256	472	630	624	390	139	23	3	2692
60 S	2	6	38	155	412	883	1514	2138	2527	2667	2689	2692	2692

Corn Growing Degree Days
50 M	76	107	234	397	566	732	833	819	649	439	206	87	5145
50 S	76	183	417	814	1380	2112	2945	3763	4412	4851	5058	5145	5145

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