| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 56h - Interlobate Dead Ice Moraines |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48367 - Leonard, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 17 | 25 | 35 | 47 | 56 | 61 | 59 | 52 | 41 | 32 | 21 | 38 |
| Avg Max Temp (°F) | 30 | 33 | 44 | 57 | 70 | 79 | 83 | 81 | 73 | 61 | 47 | 34 | 58 |
| Avg Precip (In.) | 1.88 | 1.59 | 2.41 | 3.05 | 2.85 | 3.11 | 3.21 | 3.17 | 3.33 | 2.35 | 2.69 | 2.35 | 31.99 |