Historical Climate Data

Growing Season Summary
Station: 475255 MEDFORD 1 SW, 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		 0 0 19 153 469 704 869 807 502 198 27 0 3737
GDD
Base 45		 0 0 7 82 328 555 714 652 359 107 9 0 2804
GDD
Base 50		 0 0 2 39 206 407 559 497 231 48 2 0 1989
GDD
Base 55		 0 0 0 17 112 270 405 344 130 18 0 0 1295
GDD
Base 60		 0 0 0 6 52 153 256 203 62 4 0 0 737
MGDD*
Base 50		 0 0 11 101 284 436 561 509 296 117 15 0 2327

*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 5/16 4/24 4/29 5/29 6/22 9/23 8/30 9/12 10/06 10/09
30 5/09 4/22 4/26 5/27 6/11 9/30 9/17 9/21 10/09 10/16
28 5/03 4/11 4/22 5/15 5/17 10/03 9/20 9/23 10/19 10/29
24 4/21 3/24 4/03 5/03 5/07 10/17 9/25 10/02 11/02 11/03
20 4/10 3/24 3/28 4/22 5/06 10/30 10/07 10/16 11/13 11/16
16 4/07 3/16 3/20 4/17 4/22 11/09 10/19 10/24 11/22 11/29

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 136 94 107 151 156
30 144 112 123 159 171
28 157 126 136 173 194
24 184 141 162 203 212
20 201 166 181 220 234
16 216 189 204 240 253