WINKLER CO AP, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(419830) WINK FAA AIRPORT
From Year=1938 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	195	281	523	774	1070	1270	1354	1319	1079	796	398	209	9268
40 S	195	475	998	1772	2842	4112	5466	6785	7864	8660	9058	9268	9268
45 M	100	169	378	625	915	1120	1199	1164	929	642	267	108	7616
45 S	100	269	647	1272	2187	3307	4506	5670	6599	7241	7508	7616	7616
50 M	40	86	247	478	761	970	1044	1009	779	490	157	44	6103
50 S	40	126	373	851	1611	2581	3625	4634	5413	5903	6060	6103	6103
55 M	12	34	138	338	606	820	889	854	630	344	74	13	4751
55 S	12	46	183	521	1127	1947	2836	3690	4320	4664	4739	4751	4751
60 M	2	9	60	211	454	670	734	699	482	213	26	2	3561
60 S	2	11	71	282	736	1406	2140	2839	3321	3533	3559	3561	3561

Corn Growing Degree Days
50 M	181	224	363	495	674	803	874	854	700	511	287	192	6158
50 S	181	405	768	1264	1937	2740	3614	4468	5168	5679	5966	6158	6158

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