| 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. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 57a - Maumee Lake Plains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 43567 - Wauseon, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 17 | 26 | 36 | 48 | 57 | 61 | 58 | 51 | 40 | 31 | 21 | 38 |
| Avg Max Temp (°F) | 30 | 34 | 46 | 58 | 70 | 80 | 84 | 81 | 75 | 62 | 48 | 36 | 59 |
| Avg Precip (In.) | 1.91 | 1.69 | 2.55 | 3.31 | 3.45 | 3.76 | 3.41 | 3.62 | 3.09 | 2.57 | 2.92 | 2.52 | 34.82 |