| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 61c - Low Lime Drift Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44280 - Valley City, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 19 | 27 | 37 | 48 | 57 | 61 | 59 | 53 | 42 | 33 | 23 | 40 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 59 | 70 | 79 | 83 | 81 | 74 | 62 | 49 | 37 | 59 |
| Avg Precip (In.) | 2.35 | 2.13 | 2.8 | 3.31 | 3.64 | 3.96 | 3.74 | 3.67 | 3.47 | 2.55 | 3.19 | 2.96 | 37.79 |