| 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 4b: -25F to -20F |
| 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: | 47b - Des Moines Lobe |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 56065 - Mapleton, MN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 2 | 10 | 22 | 34 | 47 | 57 | 61 | 59 | 49 | 37 | 23 | 9 | 34 |
| Avg Max Temp (°F) | 22 | 28 | 40 | 57 | 70 | 80 | 83 | 80 | 73 | 60 | 41 | 26 | 55 |
| Avg Precip (In.) | .87 | .64 | 1.84 | 2.88 | 3.71 | 4.6 | 4.25 | 4.34 | 2.78 | 2.26 | 1.81 | .97 | 30.94 |