| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51m - Manistee-Leelanau Shore |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49770 - Petoskey, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 12 | 21 | 32 | 43 | 53 | 59 | 57 | 50 | 40 | 30 | 21 | 36 |
| Avg Max Temp (°F) | 26 | 28 | 38 | 49 | 62 | 71 | 76 | 75 | 67 | 56 | 43 | 32 | 52 |
| Avg Precip (In.) | 2.08 | 1.25 | 1.99 | 2.46 | 2.65 | 2.61 | 3.09 | 3.45 | 3.68 | 3.19 | 2.59 | 2.19 | 31.22 |