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Period of Record General Climate Summary - Growing Degree Days

Station:(218227) THEILMAN
From Year=1938 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 0 3 50 235 553 813 972 899 610 297 50 2 4485
40 S 0 3 53 288 841 1655 2627 3526 4136 4434 4483 4485 4485
45 M 0 1 24 139 404 663 817 744 463 185 21 1 3461
45 S 0 1 25 164 568 1231 2048 2793 3255 3440 3460 3461 3461
50 M 0 0 11 73 267 514 662 589 322 102 7 0 2548
50 S 0 0 11 84 351 865 1527 2116 2438 2541 2548 2548 2548
55 M 0 0 4 34 156 367 507 435 200 49 2 0 1754
55 S 0 0 4 38 194 561 1068 1503 1704 1753 1754 1754 1754
60 M 0 0 1 13 81 230 354 285 108 19 0 0 1091
60 S 0 0 1 14 95 325 679 964 1072 1091 1091 1091 1091
Corn Growing Degree Days
50 M 0 2 36 161 352 524 643 587 384 194 32 1 2916
50 S 0 2 38 199 551 1075 1718 2305 2689 2883 2915 2916 2916
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