| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 70f - Ohio/Kentucky Carboniferous Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 43720 - Blue Rock, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 31 | 39 | 49 | 58 | 62 | 60 | 53 | 42 | 34 | 25 | 41 |
| Avg Max Temp (°F) | 36 | 41 | 52 | 63 | 73 | 80 | 83 | 82 | 76 | 65 | 52 | 41 | 62 |
| Avg Precip (In.) | 2.43 | 2.25 | 2.97 | 3.27 | 4.17 | 4.24 | 4.3 | 3.92 | 2.9 | 2.49 | 3.07 | 2.78 | 38.78 |