| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 45631 - Gallipolis, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 23 | 30 | 39 | 50 | 59 | 64 | 62 | 55 | 42 | 33 | 25 | 42 |
| Avg Max Temp (°F) | 41 | 45 | 56 | 66 | 75 | 83 | 86 | 85 | 79 | 68 | 56 | 45 | 66 |
| Avg Precip (In.) | 3.16 | 3.01 | 3.69 | 3.29 | 4.11 | 4.02 | 4.52 | 3.85 | 2.9 | 2.63 | 3.1 | 3.27 | 41.54 |