Clermont, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 20.9 °C (high). Annual precipitation averages 1554.7 Millimeters. Clermont 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 | -0.9 °C | 10.3 °C | 144.02 mm |
| February | 0.6 °C | 12.4 °C | 135.13 mm |
| March | 3.8 °C | 16.6 °C | 141.48 mm |
| April | 8 °C | 21.2 °C | 120.4 mm |
| May | 12.8 °C | 24.9 °C | 112.52 mm |
| June | 17.3 °C | 28.5 °C | 127.76 mm |
| July | 19.3 °C | 30.2 °C | 125.48 mm |
| August | 18.9 °C | 29.7 °C | 141.73 mm |
| September | 15.7 °C | 26.8 °C | 115.32 mm |
| October | 9.3 °C | 21.8 °C | 118.87 mm |
| November | 3.6 °C | 16.3 °C | 123.44 mm |
| December | 0.7 °C | 11.7 °C | 148.59 mm |
| Annual | 9.1 °C | 20.9 °C | 1554.74 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |