| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 50l - Menominee Ground Moraine |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49891 - Trenary, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 8 | 17 | 29 | 39 | 48 | 53 | 53 | 45 | 36 | 25 | 13 | 31 |
| Avg Max Temp (°F) | 23 | 28 | 37 | 50 | 65 | 74 | 78 | 76 | 67 | 55 | 40 | 28 | 52 |
| Avg Precip (In.) | 1.95 | 1.28 | 2.15 | 2.49 | 2.84 | 3.61 | 3.38 | 3.91 | 3.84 | 3.06 | 2.69 | 2.01 | 33.22 |