| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| 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 49660 - Manistee, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 25 | 34 | 44 | 53 | 58 | 58 | 51 | 42 | 32 | 23 | 38 |
| Avg Max Temp (°F) | 30 | 33 | 42 | 55 | 67 | 76 | 80 | 78 | 71 | 60 | 46 | 34 | 56 |
| Avg Precip (In.) | 2.15 | 1.43 | 2.12 | 2.77 | 2.62 | 3.27 | 3.02 | 3.92 | 3.59 | 3.27 | 2.91 | 2.3 | 33.37 |