LUBBOCK 9 N, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(415410) LUBBOCK 9 N
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 125 186 361 602 879 1100 1215 1184 944 667 296 138 7699
40 S 125 311 672 1275 2154 3254 4470 5653 6598 7265 7562 7699 7699
45 M 56 101 236 457 725 950 1060 1029 795 515 178 62 6163
45 S 56 157 394 850 1575 2525 3586 4614 5409 5923 6102 6163 6163
50 M 20 44 134 319 571 800 905 874 645 367 89 20 4787
50 S 20 63 197 516 1086 1887 2792 3666 4311 4678 4767 4787 4787
55 M 5 13 61 197 419 650 750 719 496 233 35 4 3581
55 S 5 18 79 275 694 1345 2095 2814 3310 3542 3577 3581 3581
60 M 0 3 19 100 276 501 595 564 350 123 9 0 2541
60 S 0 3 22 123 399 900 1496 2059 2410 2532 2541 2541 2541
Corn Growing Degree Days
50 M 124 165 277 398 555 707 790 769 612 426 220 127 5170
50 S 124 289 566 964 1518 2225 3015 3785 4397 4823 5044 5170 5170
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