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Period of Record General Climate Summary - Growing Degree Days

Station:(321408) CASSELTON AGRONOMY FRM
From Year=1984 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 16 179 515 780 941 880 565 215 25 0 4118
40 S 0 0 17 195 711 1491 2432 3312 3877 4092 4117 4118 4118
45 M 0 0 4 98 372 630 786 725 420 122 8 0 3167
45 S 0 0 4 103 475 1105 1891 2617 3037 3159 3167 3167 3167
50 M 0 0 1 48 244 481 631 570 288 63 1 0 2327
50 S 0 0 1 49 293 774 1405 1975 2263 2326 2327 2327 2327
55 M 0 0 0 20 140 336 477 416 174 28 0 0 1591
55 S 0 0 0 20 160 496 973 1389 1563 1591 1591 1591 1591
60 M 0 0 0 7 67 204 325 269 91 11 0 0 974
60 S 0 0 0 7 74 278 603 873 963 974 974 974 974
Corn Growing Degree Days
50 M 0 0 13 129 318 487 614 564 352 146 21 1 2645
50 S 0 1 14 143 461 948 1562 2126 2478 2624 2645 2645 2645
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