EAU CLAIRE, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(472423) EAU CLAIRE
From Year=1893 To Year=1960
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 31 223 561 825 1007 936 640 320 43 1 4588
40 S 0 1 32 255 815 1640 2647 3583 4224 4543 4587 4588 4588
45 M 0 0 12 133 412 675 852 781 493 201 17 0 3576
45 S 0 0 12 145 557 1232 2084 2865 3358 3559 3576 3576 3576
50 M 0 0 4 71 277 525 697 626 353 110 5 0 2669
50 S 0 0 4 75 352 878 1575 2201 2554 2664 2669 2669 2669
55 M 0 0 1 34 166 379 542 471 226 50 1 0 1870
55 S 0 0 1 35 201 579 1122 1593 1819 1869 1870 1870 1870
60 M 0 0 0 13 85 243 388 321 126 17 0 0 1194
60 S 0 0 0 13 98 342 729 1050 1177 1194 1194 1194 1194
Corn Growing Degree Days
50 M 0 1 23 146 342 526 668 613 388 185 24 1 2917
50 S 0 1 24 170 511 1037 1705 2319 2707 2892 2916 2917 2917
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