| 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: | 55a - Clayey High Lime Till Plains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 43338 - Mount Gilead, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 27 | 36 | 47 | 57 | 61 | 58 | 51 | 40 | 31 | 22 | 39 |
| Avg Max Temp (°F) | 33 | 37 | 48 | 60 | 70 | 79 | 83 | 81 | 75 | 63 | 49 | 37 | 60 |
| Avg Precip (In.) | 2.54 | 2.08 | 2.68 | 3.47 | 4.21 | 4.37 | 4.3 | 3.84 | 3.21 | 2.47 | 3.21 | 2.97 | 39.36 |