FLOYDADA, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(413214) FLOYDADA 2 SW
From Year=1911 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	88	142	322	561	851	1081	1224	1178	921	632	277	112	7389
40 S	88	230	552	1113	1964	3045	4270	5448	6369	7000	7278	7389	7389
45 M	35	73	204	418	697	931	1069	1023	771	481	168	47	5917
45 S	35	108	312	730	1427	2358	3427	4450	5221	5702	5870	5917	5917
50 M	9	31	112	285	543	781	914	868	622	336	86	14	4603
50 S	9	40	152	437	980	1761	2676	3544	4166	4502	4589	4603	4603
55 M	1	9	51	171	394	631	759	713	475	207	33	3	3448
55 S	1	10	61	232	627	1258	2017	2730	3205	3412	3445	3448	3448
60 M	0	2	17	86	257	482	604	558	332	105	8	0	2451
60 S	0	2	19	104	361	843	1447	2006	2338	2443	2451	2451	2451

Corn Growing Degree Days
50 M	100	133	248	368	533	701	803	775	593	398	202	111	4965
50 S	100	233	481	849	1382	2083	2886	3661	4254	4652	4854	4965	4965

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