Historical Climate Data

Growing Season Summary
Station: 477892 SOLON SPRINGS, 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 16 125 429 657 826 767 459 182 20 0 3441
GDD
Base 45		 0 0 4 63 296 515 680 620 324 96 7 0 2574
GDD
Base 50		 0 0 0 28 183 376 533 473 203 43 2 0 1819
GDD
Base 55		 0 0 0 11 102 247 388 328 109 15 0 0 1184
GDD
Base 60		 0 0 0 3 49 137 248 195 50 4 0 0 678
MGDD*
Base 50		 0 1 17 114 300 419 531 491 292 126 15 0 2284

*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 5/29 4/30 5/13 6/14 6/22 9/20 9/02 9/08 9/29 10/04
30 5/21 4/30 5/06 6/09 6/22 9/23 9/08 9/18 10/04 10/08
28 5/12 4/28 4/29 5/27 5/30 10/01 9/12 9/22 10/13 10/16
24 5/03 4/10 4/23 5/14 5/18 10/10 9/22 10/01 10/27 11/04
20 4/20 3/26 4/06 4/30 5/07 10/24 10/02 10/09 11/07 11/11
16 4/09 3/21 3/25 4/21 4/28 11/06 10/19 10/20 11/16 11/28

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 112 89 93 130 145
30 124 90 113 144 155
28 142 113 121 157 170
24 162 141 147 181 189
20 190 150 162 212 217
16 212 176 188 229 252