| 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: | 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 43952 - Steubenville, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 29 | 38 | 48 | 57 | 62 | 60 | 54 | 42 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 36 | 40 | 51 | 62 | 72 | 80 | 83 | 82 | 75 | 64 | 52 | 41 | 61 |
| Avg Precip (In.) | 2.82 | 2.45 | 3.26 | 3.27 | 4.14 | 4.24 | 4.31 | 3.72 | 3.19 | 2.55 | 3.19 | 2.88 | 40.01 |