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Period of Record General Climate Summary - Growing Degree Days

Station:(479304) WINTER 5 NW
From Year=1915 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 0 16 113 385 637 806 731 455 185 23 1 3353
40 S 0 0 16 130 514 1152 1958 2689 3144 3330 3352 3353 3353
45 M 0 0 6 58 255 489 652 576 316 100 8 0 2458
45 S 0 0 6 64 319 807 1459 2035 2351 2451 2458 2458 2458
50 M 0 0 2 26 151 345 497 422 197 45 2 0 1687
50 S 0 0 2 28 179 524 1021 1443 1640 1685 1687 1687 1687
55 M 0 0 1 10 77 216 344 276 107 18 0 0 1048
55 S 0 0 1 11 88 304 648 924 1030 1048 1048 1048 1048
60 M 0 0 0 3 33 113 205 149 50 5 0 0 559
60 S 0 0 0 4 36 150 355 504 554 559 559 559 559
Corn Growing Degree Days
50 M 0 1 14 91 255 399 516 462 281 128 15 0 2162
50 S 0 1 15 106 360 760 1276 1737 2018 2146 2161 2162 2162
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