| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 2012 Hardiness Zone: | 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: | 57e - Saginaw Lake Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48618 - Coleman, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 13 | 22 | 33 | 44 | 53 | 58 | 56 | 48 | 37 | 28 | 19 | 35 |
| Avg Max Temp (°F) | 28 | 31 | 42 | 55 | 69 | 78 | 83 | 80 | 72 | 59 | 45 | 33 | 56 |
| Avg Precip (In.) | 1.75 | 1.3 | 2.18 | 2.82 | 2.91 | 3.22 | 2.75 | 3.67 | 3.64 | 2.7 | 2.51 | 2.03 | 31.48 |