| 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 5a: -20F to -15F |
| 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: | 50aa - Menominee-Drummond Lakeshore |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 49837 - Gladstone, MI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 9 | 18 | 30 | 42 | 50 | 56 | 56 | 48 | 38 | 26 | 14 | 33 |
| Avg Max Temp (°F) | 25 | 28 | 36 | 47 | 61 | 70 | 76 | 74 | 66 | 54 | 41 | 30 | 51 |
| Avg Precip (In.) | 1.51 | 1 | 1.9 | 2.06 | 2.74 | 3.06 | 3.32 | 3.51 | 3.26 | 2.54 | 2.52 | 1.52 | 28.96 |