Norton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 43.4 °F (low) to 64.5 °F (high). Annual precipitation averages 48.4 Inches. Norton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.7 °F | 42.4 °F | 4.2 in. |
| February | 26.5 °F | 46.4 °F | 4.37 in. |
| March | 33.1 °F | 55.2 °F | 4.13 in. |
| April | 42.3 °F | 66.0 °F | 3.93 in. |
| May | 51.1 °F | 73.4 °F | 3.96 in. |
| June | 58.9 °F | 80.0 °F | 4.87 in. |
| July | 62.7 °F | 82.5 °F | 5.83 in. |
| August | 61.6 °F | 81.9 °F | 3.67 in. |
| September | 55.4 °F | 77.3 °F | 3.57 in. |
| October | 43.8 °F | 66.9 °F | 3.02 in. |
| November | 33.5 °F | 55.4 °F | 2.88 in. |
| December | 28.0 °F | 46.2 °F | 3.92 in. |
| Annual | 43.4 °F | 64.5 °F | 48.35 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |