ASHLAND EXP FARM, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(470349) ASHLAND EXP FARM
From Year=1893 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 13 101 345 631 839 783 504 224 29 1 3471
40 S 0 1 14 115 460 1091 1930 2713 3217 3441 3470 3471 3471
45 M 0 0 5 52 219 482 684 628 360 125 10 0 2565
45 S 0 0 5 57 275 758 1441 2070 2429 2555 2565 2565 2565
50 M 0 0 1 24 124 339 529 474 231 60 3 0 1785
50 S 0 0 1 26 150 489 1017 1491 1722 1782 1785 1785 1785
55 M 0 0 0 10 62 212 375 324 129 24 1 0 1136
55 S 0 0 0 10 72 284 659 983 1112 1135 1136 1136 1136
60 M 0 0 0 3 26 113 231 190 62 7 0 0 633
60 S 0 0 0 3 29 142 373 563 625 632 633 633 633
Corn Growing Degree Days
50 M 0 1 11 82 225 389 535 497 306 141 18 1 2206
50 S 0 1 12 94 319 709 1244 1740 2046 2187 2205 2206 2206
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