PLYMOUTH, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(476678) PLYMOUTH
From Year=1910 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 1 2 40 183 476 757 953 899 633 322 64 5 4335
40 S 1 3 43 226 702 1458 2412 3311 3943 4265 4329 4335 4335
45 M 0 0 19 102 332 607 798 744 484 200 27 1 3315
45 S 0 0 20 121 453 1060 1859 2603 3087 3287 3314 3315 3315
50 M 0 0 8 51 209 458 643 589 341 109 9 0 2418
50 S 0 0 8 60 268 726 1370 1959 2300 2409 2418 2418 2418
55 M 0 0 3 23 115 317 488 434 215 49 2 0 1647
55 S 0 0 3 26 141 458 947 1381 1596 1645 1647 1647 1647
60 M 0 0 1 9 55 193 336 285 117 18 0 0 1013
60 S 0 0 1 10 65 257 593 878 995 1013 1013 1013 1013
Corn Growing Degree Days
50 M 0 1 24 108 276 471 629 584 376 169 29 2 2671
50 S 0 1 25 134 410 881 1510 2095 2471 2640 2669 2671 2671
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