| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 51i - Big Woods |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 55317 - Chanhassen, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 3 | 9 | 22 | 35 | 47 | 56 | 61 | 59 | 49 | 38 | 24 | 10 | 34 |
| Avg Max Temp (°F) | 23 | 29 | 42 | 58 | 72 | 80 | 84 | 81 | 73 | 60 | 41 | 27 | 56 |
| Avg Precip (In.) | .88 | .65 | 1.75 | 2.43 | 3.55 | 4.41 | 4.27 | 4.28 | 3 | 2.23 | 1.91 | .85 | 30.21 |