Rome, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.6 °C (low) to 22.4 °C (high). Annual precipitation averages 1357.1 Millimeters. Rome is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.8 °C | 11.2 °C | 123.44 mm |
| February | 0.7 °C | 13.3 °C | 124.21 mm |
| March | 4.3 °C | 18.1 °C | 137.41 mm |
| April | 8.5 °C | 22.9 °C | 115.57 mm |
| May | 13.8 °C | 26.9 °C | 97.79 mm |
| June | 18.4 °C | 30.4 °C | 110.49 mm |
| July | 20.4 °C | 32.2 °C | 112.27 mm |
| August | 19.9 °C | 31.7 °C | 106.68 mm |
| September | 16.2 °C | 29.1 °C | 93.47 mm |
| October | 9.3 °C | 23.5 °C | 98.55 mm |
| November | 3.2 °C | 17.3 °C | 110.49 mm |
| December | 0.7 °C | 12.6 °C | 126.75 mm |
| Annual | 9.6 °C | 22.4 °C | 1357.12 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |