ANDREWS, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(410248) ANDREWS
From Year=1914 To Year=2010
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	193	269	502	744	1021	1192	1287	1242	1016	770	406	217	8860
40 S	193	463	965	1709	2730	3922	5208	6451	7466	8237	8643	8860	8860
45 M	100	162	361	595	866	1042	1132	1087	866	617	276	117	7219
45 S	100	262	622	1217	2083	3125	4256	5344	6210	6826	7102	7219	7219
50 M	41	82	232	449	711	892	977	932	716	466	165	48	5711
50 S	41	123	355	804	1515	2407	3383	4316	5032	5498	5662	5711	5711
55 M	11	32	127	310	557	742	822	777	568	321	80	15	4362
55 S	11	44	171	481	1038	1780	2601	3379	3946	4267	4347	4362	4362
60 M	1	9	56	185	405	592	667	622	421	191	27	2	3178
60 S	1	10	66	251	657	1248	1915	2537	2958	3149	3176	3178	3178

Corn Growing Degree Days
50 M	158	202	344	488	655	769	838	817	670	493	269	166	5867
50 S	158	360	703	1191	1846	2615	3453	4270	4940	5433	5701	5867	5867

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