MULESHOE NWR, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(416137) MULESHOE NATL WDLF REF
From Year=1980 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	83	142	314	518	828	1064	1170	1131	875	580	252	92	7051
40 S	83	226	540	1058	1886	2951	4120	5252	6127	6707	6959	7051	7051
45 M	30	71	195	377	674	914	1015	976	726	431	148	36	5593
45 S	30	101	296	673	1347	2261	3275	4252	4978	5409	5557	5593	5593
50 M	8	26	102	248	520	764	860	821	578	291	70	10	4297
50 S	8	34	136	384	904	1669	2528	3349	3927	4218	4288	4297	4297
55 M	1	6	42	140	372	614	705	666	431	167	24	1	3169
55 S	1	7	49	189	561	1175	1880	2546	2977	3144	3168	3169	3169
60 M	0	1	12	62	235	465	550	511	289	75	5	0	2204
60 S	0	1	12	74	310	774	1324	1835	2125	2199	2204	2204	2204

Corn Growing Degree Days
50 M	120	157	269	372	518	665	744	725	556	394	221	119	4858
50 S	120	277	546	917	1435	2100	2844	3569	4125	4518	4739	4858	4858

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