Historical Climate Data

Growing Season Summary
Station: 472173 DODGEVILLE, WI

Growing Degree Day Averages
Derived from 1971-2000 Data

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
GDD
Base 40		 1 3 56 229 543 798 959 890 618 288 54 4 4434
GDD
Base 45		 0 0 26 133 393 649 804 736 470 175 24 1 3405
GDD
Base 50		 0 0 11 69 257 500 649 581 327 91 9 0 2489
GDD
Base 55		 0 0 4 33 148 355 494 427 204 39 2 0 1701
GDD
Base 60		 0 0 1 14 74 220 341 277 110 13 0 0 1047
MGDD*
Base 50		 0 2 38 147 331 512 636 579 376 173 29 2 2821

*Modified Growing Degree Days: Base 50 Ceiling 86.

Growing Season Summary
Derived from 1971-2000 Averages

  Date of Last Spring Occurrence Date of First Fall Occurrence
Base
Temp
°F		 Median Early 90% 10% Late Median Early 90% 10% Late
32 5/05 4/21 4/23 5/20 5/28 10/04 9/20 9/22 10/12 10/17
30 5/02 4/09 4/13 5/12 5/16 10/05 9/20 9/23 10/14 11/03
28 4/24 4/02 4/10 5/07 5/16 10/09 9/22 9/25 11/01 11/09
24 4/10 3/23 3/28 4/22 5/07 10/25 10/02 10/09 11/14 11/19
20 4/06 3/18 3/22 4/18 4/21 11/03 10/10 10/15 11/19 11/25
16 3/24 2/21 3/03 4/09 4/13 11/11 10/20 10/31 11/27 12/20

Length of Growing Season (Days)
Derived from 1971-2000 Averages

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 153 125 134 160 167
30 157 138 143 177 204
28 167 140 151 191 205
24 200 150 177 217 220
20 212 177 194 230 246
16 230 194 209 270 279