| 2023 Hardiness Zone: | 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: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 55d - Pre-Wisconsinan Drift Plains |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 45249 - Cincinnati, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 22 | 31 | 40 | 50 | 59 | 63 | 61 | 54 | 41 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 37 | 42 | 53 | 64 | 74 | 82 | 86 | 85 | 78 | 67 | 53 | 42 | 64 |
| Avg Precip (In.) | 3.05 | 2.65 | 3.65 | 4.1 | 4.83 | 4.15 | 4.04 | 3.91 | 3.09 | 3.01 | 3.52 | 3.17 | 43.15 |