| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| 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: | 71d - Outer Bluegrass |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 45157 - New Richmond, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 23 | 31 | 40 | 50 | 59 | 64 | 62 | 55 | 42 | 34 | 25 | 42 |
| Avg Max Temp (°F) | 39 | 43 | 54 | 65 | 74 | 82 | 86 | 85 | 79 | 67 | 54 | 43 | 64 |
| Avg Precip (In.) | 3.02 | 2.78 | 3.95 | 3.9 | 4.68 | 4.26 | 4.05 | 3.88 | 3.09 | 2.91 | 3.45 | 3.29 | 43.25 |