| 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. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 61c - Low Lime Drift Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44842 - Loudonville, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 17 | 26 | 35 | 46 | 55 | 59 | 57 | 50 | 39 | 31 | 21 | 38 |
| Avg Max Temp (°F) | 33 | 37 | 47 | 59 | 70 | 78 | 82 | 81 | 74 | 62 | 49 | 38 | 59 |
| Avg Precip (In.) | 2.42 | 2.12 | 2.85 | 3.48 | 4.11 | 4.41 | 4.16 | 3.99 | 3.4 | 2.55 | 3.17 | 2.76 | 39.42 |