New Augusta, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.8 °C (low) to 25.8 °C (high). Annual precipitation averages 1586.5 Millimeters. New Augusta is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.2 °C | 15.9 °C | 157.48 mm |
| February | 3.9 °C | 18.2 °C | 134.37 mm |
| March | 7.3 °C | 22.1 °C | 146.56 mm |
| April | 11.1 °C | 26 °C | 130.81 mm |
| May | 15.8 °C | 29.9 °C | 116.84 mm |
| June | 20 °C | 32.7 °C | 147.07 mm |
| July | 21.4 °C | 33.7 °C | 159 mm |
| August | 21.2 °C | 33.7 °C | 137.67 mm |
| September | 18.3 °C | 31.8 °C | 113.79 mm |
| October | 11.7 °C | 27.1 °C | 88.9 mm |
| November | 5.8 °C | 21.1 °C | 105.92 mm |
| December | 3.2 °C | 16.9 °C | 148.08 mm |
| Annual | 11.8 °C | 25.8 °C | 1586.49 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |