Historical Climate Data

Growing Season Summary
Station: 477349 ROSHOLT 9 NNE, 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 1 27 165 487 715 877 820 522 235 35 1 3770
GDD
Base 45		 0 0 11 90 343 568 723 667 378 134 14 0 2836
GDD
Base 50		 0 0 3 44 216 421 568 514 246 65 4 0 2013
GDD
Base 55		 0 0 0 19 121 282 414 362 141 27 0 0 1319
GDD
Base 60		 0 0 0 7 57 163 265 219 68 8 0 0 757
MGDD*
Base 50		 0 1 22 122 311 455 569 529 325 150 21 1 2428

*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 5/21 4/21 4/30 6/08 6/17 9/22 8/27 9/08 10/04 10/12
30 5/17 4/21 4/27 6/05 6/17 9/25 9/06 9/13 10/10 10/13
28 5/03 4/10 4/23 5/17 6/17 10/02 9/13 9/21 10/17 11/01
24 4/21 4/03 4/08 5/03 5/16 10/14 9/14 9/28 11/03 11/13
20 4/10 3/24 4/03 4/22 5/16 11/01 9/24 10/11 11/14 11/16
16 4/06 3/15 3/18 4/16 5/16 11/08 10/04 10/20 11/21 11/29

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 126 85 95 146 151
30 136 97 102 152 157
28 153 102 128 168 191
24 177 130 153 204 214
20 205 140 175 218 220
16 218 167 184 246 259