TORNILLO 2 SSE, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(419088) TORNILLO 2 SSE
From Year=1946 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 152 264 488 704 974 1171 1251 1200 996 722 348 142 8412
40 S 152 416 904 1608 2582 3753 5004 6205 7201 7922 8271 8412 8412
45 M 59 145 337 555 819 1021 1096 1045 846 567 215 54 6760
45 S 59 204 541 1096 1915 2936 4032 5077 5923 6491 6706 6760 6760
50 M 14 61 200 406 664 871 941 890 696 415 107 12 5278
50 S 14 75 275 682 1346 2217 3158 4048 4744 5159 5266 5278 5278
55 M 2 16 93 264 509 721 786 735 546 267 35 2 3977
55 S 2 18 111 375 884 1605 2391 3126 3673 3940 3975 3977 3977
60 M 0 2 27 139 356 571 631 580 397 137 7 0 2847
60 S 0 2 29 168 524 1095 1726 2306 2703 2840 2847 2847 2847
Corn Growing Degree Days
50 M 165 224 364 476 611 716 805 785 648 480 280 150 5703
50 S 165 389 753 1229 1840 2556 3361 4145 4793 5272 5552 5703 5703
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