PORT WING, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(476772) PORT WING 3 E
From Year=1947 To Year=2008
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 10 92 325 574 816 793 516 235 32 1 3394
40 S 0 1 11 103 428 1002 1818 2611 3126 3362 3393 3394 3394
45 M 0 0 3 42 193 425 661 638 370 129 10 0 2470
45 S 0 0 3 45 238 663 1323 1961 2331 2460 2470 2470 2470
50 M 0 0 0 18 96 283 506 483 237 60 3 0 1686
50 S 0 0 0 18 115 397 903 1386 1623 1683 1686 1686 1686
55 M 0 0 0 7 39 162 353 332 132 23 1 0 1048
55 S 0 0 0 7 45 207 560 892 1024 1047 1048 1048 1048
60 M 0 0 0 2 13 74 213 196 63 8 0 0 568
60 S 0 0 0 2 15 89 302 498 561 568 568 568 568
Corn Growing Degree Days
50 M 0 1 8 68 209 349 513 497 293 124 14 1 2076
50 S 0 1 9 77 286 635 1148 1645 1937 2062 2076 2076 2076
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