Historical Climate Data

Growing Season Summary
Station: 478171 STEVENS POINT, 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 2 36 201 528 780 939 875 583 271 46 2 4252
GDD
Base 45		 0 0 16 116 381 630 784 720 437 161 19 0 3256
GDD
Base 50		 0 0 6 61 249 481 629 565 298 82 7 0 2371
GDD
Base 55		 0 0 2 28 145 336 475 410 181 35 1 0 1610
GDD
Base 60		 0 0 0 12 73 207 322 262 95 11 0 0 981
MGDD*
Base 50		 0 1 24 127 319 494 621 567 348 152 25 1 2674

*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 5/06 4/17 4/24 5/18 5/27 10/01 9/20 9/22 10/11 10/14
30 5/03 4/07 4/23 5/11 5/16 10/04 9/20 9/23 10/15 10/22
28 4/23 3/25 4/09 5/08 5/11 10/09 9/22 9/27 10/27 11/10
24 4/12 3/24 4/03 4/24 5/06 10/31 10/02 10/10 11/13 11/16
20 4/07 3/14 3/20 4/13 4/18 11/05 10/10 10/20 11/16 11/29
16 3/27 2/27 3/14 4/10 4/16 11/12 10/20 11/01 11/28 12/21

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 148 119 133 160 167
30 157 137 140 169 178
28 171 138 148 194 199
24 202 151 175 217 234
20 216 190 196 235 260
16 229 193 210 251 280