Clifton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.8 °F (low) to 66.8 °F (high). Annual precipitation averages 43.5 Inches. Clifton is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.3 °F | 43.7 °F | 2.88 in. |
| February | 26.8 °F | 47.0 °F | 2.57 in. |
| March | 33.7 °F | 55.6 °F | 3.61 in. |
| April | 43.7 °F | 67.5 °F | 3.17 in. |
| May | 53.5 °F | 75.5 °F | 4.29 in. |
| June | 62.7 °F | 84.1 °F | 4.42 in. |
| July | 67.6 °F | 88.4 °F | 4.41 in. |
| August | 65.6 °F | 86.5 °F | 3.54 in. |
| September | 59.0 °F | 80.0 °F | 4.24 in. |
| October | 46.5 °F | 68.5 °F | 3.65 in. |
| November | 35.9 °F | 57.5 °F | 3.16 in. |
| December | 29.4 °F | 47.5 °F | 3.57 in. |
| Annual | 45.8 °F | 66.8 °F | 43.51 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |