| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 70b - Monongahela Transition Zone |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 45669 - Proctorville, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 24 | 32 | 40 | 50 | 59 | 64 | 62 | 55 | 42 | 34 | 26 | 43 |
| Avg Max Temp (°F) | 41 | 46 | 56 | 67 | 75 | 83 | 87 | 85 | 79 | 68 | 56 | 46 | 66 |
| Avg Precip (In.) | 3.22 | 3.07 | 3.8 | 3.42 | 4.43 | 4.06 | 4.65 | 4.01 | 2.93 | 2.8 | 3.32 | 3.47 | 43.18 |