Newville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.9 °C (low) to 25.3 °C (high). Annual precipitation averages 1436.1 Millimeters. Newville 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.3 °C | 15.7 °C | 124.97 mm |
| February | 5 °C | 17.8 °C | 132.33 mm |
| March | 8.2 °C | 21.7 °C | 136.4 mm |
| April | 11.9 °C | 25.6 °C | 117.86 mm |
| May | 16.8 °C | 29.7 °C | 87.63 mm |
| June | 20.8 °C | 32.2 °C | 133.86 mm |
| July | 22 °C | 33.2 °C | 156.97 mm |
| August | 21.6 °C | 32.7 °C | 131.83 mm |
| September | 19.1 °C | 30.8 °C | 108.46 mm |
| October | 13.3 °C | 26.3 °C | 74.42 mm |
| November | 7.4 °C | 20.8 °C | 103.63 mm |
| December | 4.8 °C | 16.9 °C | 127.76 mm |
| Annual | 12.9 °C | 25.3 °C | 1436.12 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |