Historical Climate Data

Growing Season Summary
Station: 215435 MINNEAPOLIS WSFO AP, MN

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 3 43 240 603 857 1034 954 636 294 44 1 4714
GDD
Base 45		 0 0 18 141 451 707 879 799 488 177 18 0 3683
GDD
Base 50		 0 0 6 73 308 557 724 644 346 93 6 0 2761
GDD
Base 55		 0 0 2 33 187 409 569 489 219 41 1 0 1954
GDD
Base 60		 0 0 0 14 98 269 415 336 120 13 0 0 1268
MGDD*
Base 50		 0 1 26 142 357 554 700 633 379 162 23 1 2983

*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 4/29 4/08 4/17 5/14 5/17 10/03 9/03 9/23 10/20 10/30
30 4/22 3/25 4/09 5/05 5/10 10/09 9/22 9/27 10/30 11/01
28 4/14 3/25 4/05 5/02 5/06 10/19 9/22 10/02 11/02 11/09
24 4/07 3/20 3/25 4/16 4/24 11/03 10/01 10/16 11/15 11/27
20 3/29 3/06 3/18 4/09 4/13 11/07 10/19 10/28 11/21 12/05
16 3/19 2/26 3/07 4/05 4/09 11/14 10/20 10/30 11/29 12/17

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 160 120 144 178 188
30 172 139 155 195 208
28 187 139 162 206 208
24 209 176 189 225 247
20 220 193 210 245 259
16 237 201 218 263 276