| 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 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 47c - Iowan Surface |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 55944 - Kasson, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 3 | 10 | 22 | 34 | 46 | 56 | 60 | 58 | 49 | 37 | 23 | 9 | 34 |
| Avg Max Temp (°F) | 21 | 28 | 40 | 56 | 69 | 78 | 81 | 79 | 71 | 59 | 40 | 26 | 54 |
| Avg Precip (In.) | 1.02 | .74 | 1.87 | 3.09 | 3.75 | 4.14 | 4.57 | 4.41 | 3.3 | 2.34 | 2.06 | 1.03 | 32.33 |