| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| 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: | 56f - Lake Michigan Moraines | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49327 - Grant, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 13 | 22 | 33 | 43 | 52 | 56 | 55 | 48 | 38 | 29 | 19 | 35 |
| Avg Max Temp (°F) | 29 | 32 | 42 | 56 | 69 | 78 | 81 | 79 | 71 | 60 | 45 | 34 | 56 |
| Avg Precip (In.) | 2.27 | 1.56 | 2.5 | 3.16 | 3.29 | 3.32 | 2.84 | 4.16 | 3.87 | 3.07 | 3.22 | 2.58 | 35.86 |