BRULE ISLAND, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(471139) BRULE ISLAND
From Year=1922 To Year=1989
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 10 105 382 625 796 732 440 190 20 1 3300
40 S 0 0 10 115 497 1122 1918 2650 3090 3279 3299 3300 3300
45 M 0 0 3 54 250 476 641 577 300 102 6 0 2409
45 S 0 0 3 57 307 782 1423 2000 2300 2403 2409 2409 2409
50 M 0 0 1 27 145 330 486 423 181 46 2 0 1641
50 S 0 0 1 28 173 503 989 1412 1593 1639 1641 1641 1641
55 M 0 0 0 11 73 201 333 276 94 16 0 0 1006
55 S 0 0 0 12 85 286 619 895 989 1006 1006 1006 1006
60 M 0 0 0 3 31 104 194 152 42 4 0 0 531
60 S 0 0 0 4 34 138 333 484 526 531 531 531 531
Corn Growing Degree Days
50 M 0 1 12 96 270 400 512 465 272 129 13 0 2169
50 S 0 1 12 109 378 778 1290 1755 2027 2156 2169 2169 2169
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