| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°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: | 55b - Loamy High Lime Till Plains |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 43105 - Baltimore, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 29 | 38 | 48 | 58 | 62 | 60 | 52 | 40 | 32 | 23 | 40 |
| Avg Max Temp (°F) | 35 | 40 | 51 | 62 | 72 | 81 | 85 | 83 | 77 | 65 | 52 | 41 | 62 |
| Avg Precip (In.) | 2.6 | 2.29 | 2.98 | 3.45 | 4.24 | 4.12 | 4.28 | 3.95 | 2.82 | 2.51 | 3.16 | 2.9 | 39.32 |