MIDLAND INTL AP, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(415890) MIDLAND WSO AP
From Year=1948 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 187 263 490 732 1022 1209 1302 1273 1031 768 391 208 8874
40 S 187 450 940 1672 2694 3902 5204 6477 7508 8275 8666 8874 8874
45 M 98 159 349 583 867 1059 1147 1118 881 613 262 111 7246
45 S 98 257 605 1189 2056 3114 4261 5379 6260 6873 7135 7246 7246
50 M 41 81 223 438 712 909 992 963 731 463 154 46 5753
50 S 41 122 345 783 1495 2404 3396 4359 5090 5552 5706 5753 5753
55 M 12 33 122 302 558 759 837 808 582 319 74 15 4420
55 S 12 45 167 469 1027 1786 2623 3431 4013 4332 4405 4420 4420
60 M 2 9 53 183 408 609 682 653 434 190 26 3 3251
60 S 2 10 64 247 654 1263 1945 2598 3032 3223 3248 3251 3251
Corn Growing Degree Days
50 M 154 193 326 467 657 789 856 840 680 484 258 163 5868
50 S 154 346 673 1140 1797 2586 3442 4282 4962 5447 5705 5868 5868
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