Newton, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.8 °F (low) to 77.3 °F (high). Annual precipitation averages 58.8 Inches. Newton 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 | 37.5 °F | 60.4 °F | 4.95 in. |
| February | 40.4 °F | 63.9 °F | 5.39 in. |
| March | 46.2 °F | 71.2 °F | 5.81 in. |
| April | 53.1 °F | 77.6 °F | 4.93 in. |
| May | 61.7 °F | 85.1 °F | 3.98 in. |
| June | 69.2 °F | 89.7 °F | 5.61 in. |
| July | 71.6 °F | 91.2 °F | 5.93 in. |
| August | 70.9 °F | 90.5 °F | 4.85 in. |
| September | 66.5 °F | 87.2 °F | 4.57 in. |
| October | 55.5 °F | 79.1 °F | 3.09 in. |
| November | 44.6 °F | 69.3 °F | 4.7 in. |
| December | 40.2 °F | 62.3 °F | 4.99 in. |
| Annual | 54.8 °F | 77.3 °F | 58.8 in. |
| 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 : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |