| 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. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 70b - Monongahela Transition Zone |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 43713 - Barnesville, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 19 | 28 | 36 | 47 | 56 | 60 | 58 | 51 | 40 | 32 | 23 | 39 |
| Avg Max Temp (°F) | 35 | 39 | 49 | 61 | 71 | 78 | 82 | 81 | 75 | 63 | 51 | 40 | 60 |
| Avg Precip (In.) | 2.9 | 2.65 | 3.45 | 3.67 | 4.24 | 4.53 | 4.64 | 3.85 | 3.36 | 2.73 | 3.48 | 3.08 | 42.59 |