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Period of Record General Climate Summary - Growing Degree Days

Station:(471044) BREED 6 SSE
From Year=1959 To Year=1998
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 1 20 154 456 717 878 811 527 242 32 2 3839
40 S 0 1 21 175 631 1348 2226 3037 3564 3806 3838 3839 3839
45 M 0 0 7 84 315 567 723 656 382 141 11 0 2885
45 S 0 0 7 91 405 972 1695 2352 2734 2874 2885 2885 2885
50 M 0 0 2 42 195 418 568 502 249 70 3 0 2050
50 S 0 0 2 44 239 657 1225 1727 1976 2046 2050 2050 2050
55 M 0 0 0 19 106 279 414 349 143 29 0 0 1340
55 S 0 0 0 19 125 404 818 1167 1310 1339 1340 1340 1340
60 M 0 0 0 7 50 159 266 210 68 9 0 0 769
60 S 0 0 0 7 57 216 482 692 759 769 769 769 769
Corn Growing Degree Days
50 M 0 1 18 123 310 462 574 528 334 159 21 1 2530
50 S 0 1 18 141 451 913 1487 2014 2349 2508 2529 2530 2530
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