Newington, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 25.1 °C (high). Annual precipitation averages 1226.3 Millimeters. Newington is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °C | 15.6 °C | 100.33 mm |
| February | 4.1 °C | 17.6 °C | 95.25 mm |
| March | 7.4 °C | 21.4 °C | 96.77 mm |
| April | 11.4 °C | 25.4 °C | 83.06 mm |
| May | 16.2 °C | 29.2 °C | 84.58 mm |
| June | 20.5 °C | 32.3 °C | 139.45 mm |
| July | 22.2 °C | 33.7 °C | 130.81 mm |
| August | 21.9 °C | 32.8 °C | 144.02 mm |
| September | 19.2 °C | 30.2 °C | 107.19 mm |
| October | 13.1 °C | 25.8 °C | 69.09 mm |
| November | 6.9 °C | 20.6 °C | 71.37 mm |
| December | 3.9 °C | 16.7 °C | 104.39 mm |
| Annual | 12.5 °C | 25.1 °C | 1226.31 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |