LUBBOCK INTL AP, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(415411) LUBBOCK WSO AIRPORT
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 118 178 372 616 898 1119 1236 1193 942 662 301 131 7764
40 S 118 295 667 1282 2181 3300 4535 5728 6670 7332 7633 7764 7764
45 M 52 95 245 470 743 969 1081 1038 792 510 186 59 6239
45 S 52 147 392 861 1605 2574 3654 4692 5484 5994 6180 6239 6239
50 M 17 41 141 332 589 819 926 883 643 364 97 20 4872
50 S 17 58 199 531 1120 1939 2865 3748 4391 4755 4852 4872 4872
55 M 3 13 67 208 438 669 771 728 495 231 40 5 3667
55 S 3 16 83 291 729 1398 2169 2897 3391 3622 3662 3667 3667
60 M 0 2 24 109 294 519 616 573 350 122 11 0 2622
60 S 0 3 27 136 430 950 1566 2139 2489 2611 2622 2622 2622
Corn Growing Degree Days
50 M 118 156 272 399 568 726 813 787 613 418 216 122 5208
50 S 118 274 546 945 1514 2239 3052 3839 4452 4870 5087 5208 5208
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