MARSHFIELD EXP FARM, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(475120) MARSHFIELD EXP FARM
From Year=1912 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 1 28 177 484 737 907 839 560 263 40 2 4038
40 S 0 1 29 206 691 1428 2335 3174 3734 3997 4036 4038 4038
45 M 0 0 13 98 340 587 752 684 414 155 15 0 3059
45 S 0 0 13 110 450 1038 1790 2474 2888 3043 3058 3059 3059
50 M 0 0 5 48 214 438 597 529 279 80 4 0 2194
50 S 0 0 5 52 266 704 1302 1831 2109 2189 2193 2194 2194
55 M 0 0 1 20 117 296 443 376 166 34 1 0 1453
55 S 0 0 1 21 138 434 877 1253 1419 1452 1453 1453 1453
60 M 0 0 0 7 54 172 292 233 85 11 0 0 853
60 S 0 0 0 7 61 233 525 757 842 853 853 853 853
Corn Growing Degree Days
50 M 0 0 19 118 296 462 592 538 340 158 22 1 2545
50 S 0 0 20 137 433 895 1486 2025 2364 2522 2544 2545 2545
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