| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| 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: | 57e - Saginaw Lake Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 48467 - Port Austin, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 15 | 23 | 34 | 44 | 53 | 59 | 57 | 50 | 40 | 31 | 20 | 37 |
| Avg Max Temp (°F) | 28 | 31 | 39 | 51 | 63 | 73 | 78 | 76 | 69 | 57 | 44 | 33 | 53 |
| Avg Precip (In.) | 1.96 | 1.52 | 2.17 | 2.66 | 2.91 | 2.96 | 2.87 | 3.52 | 3.82 | 2.52 | 2.65 | 2.21 | 31.77 |