Historical Climate Data

Growing Season Summary
Station: 476398 PARK FALLS, 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 22 138 460 696 856 771 482 189 19 0 3322
GDD
Base 45		 0 0 7 72 320 546 701 616 339 100 7 0 2466
GDD
Base 50		 0 0 2 34 201 399 546 461 212 44 2 0 1727
GDD
Base 55		 0 0 0 14 111 260 392 309 117 15 0 0 1106
GDD
Base 60		 0 0 0 5 54 145 244 173 55 4 0 0 617
MGDD*
Base 50		 0 0 16 96 280 427 549 477 275 105 10 0 2046

*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 4/28 5/02 5/31 6/11 9/23 9/03 9/09 10/07 10/08
30 5/04 4/21 4/27 5/16 5/26 10/01 9/03 9/20 10/12 10/16
28 4/29 4/04 4/22 5/12 5/17 10/04 9/20 9/23 10/14 10/25
24 4/23 3/25 4/04 5/02 5/06 10/21 10/02 10/04 11/11 12/01
20 4/09 3/24 3/26 4/22 5/06 11/01 10/13 10/19 11/12 12/01
16 4/04 3/16 3/22 4/10 4/11 11/11 10/19 10/30 11/29 12/09

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 127 104 109 150 158
30 149 113 133 163 170
28 157 136 141 174 181
24 186 151 164 211 217
20 208 166 187 220 250
16 218 193 211 249 268