PENWELL, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(416932) PENWELL 1 SSE
From Year=1955 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 196 261 517 750 1043 1226 1325 1294 1059 786 432 207 9097
40 S 196 458 975 1724 2768 3994 5319 6612 7671 8457 8889 9097 9097
45 M 102 155 374 602 888 1076 1170 1139 909 633 300 108 7455
45 S 102 257 631 1232 2121 3197 4367 5505 6414 7047 7347 7455 7455
50 M 42 77 243 456 733 926 1015 984 759 484 186 43 5948
50 S 42 119 362 818 1551 2477 3492 4476 5235 5718 5905 5948 5948
55 M 12 29 135 319 579 776 860 829 610 341 97 11 4597
55 S 12 41 176 494 1074 1850 2709 3538 4148 4489 4586 4597 4597
60 M 2 7 59 195 427 626 705 674 463 210 36 1 3405
60 S 2 9 68 263 691 1317 2022 2695 3158 3368 3404 3405 3405
Corn Growing Degree Days
50 M 173 200 351 481 663 790 861 841 693 503 291 171 6018
50 S 173 372 723 1204 1868 2658 3519 4360 5053 5556 5847 6018 6018
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