| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°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: | 56d - Michigan Lake Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49457 - Twin Lake, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 15 | 23 | 33 | 44 | 53 | 58 | 56 | 49 | 39 | 30 | 21 | 36 |
| Avg Max Temp (°F) | 29 | 32 | 42 | 55 | 67 | 76 | 80 | 78 | 71 | 59 | 45 | 34 | 56 |
| Avg Precip (In.) | 2.19 | 1.5 | 2.38 | 3.06 | 2.92 | 3.09 | 2.63 | 4.01 | 3.67 | 3.19 | 3.16 | 2.5 | 34.29 |