| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 61b - Mosquito Creek/Pymatuning Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44085 - Rome, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 17 | 25 | 35 | 45 | 54 | 58 | 57 | 50 | 40 | 32 | 22 | 38 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 57 | 69 | 77 | 81 | 80 | 73 | 62 | 49 | 38 | 58 |
| Avg Precip (In.) | 2.55 | 2.21 | 3.02 | 3.53 | 3.65 | 4.39 | 4.06 | 4.01 | 4.22 | 3.54 | 3.72 | 3.32 | 42.23 |