Altavista, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.3 °F (low) to 68.8 °F (high). Annual precipitation averages 44.6 Inches. Altavista 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 | 26.0 °F | 47.6 °F | 3.52 in. |
| February | 27.6 °F | 51.3 °F | 2.7 in. |
| March | 33.9 °F | 59.5 °F | 3.75 in. |
| April | 43.5 °F | 70.0 °F | 3.61 in. |
| May | 53.1 °F | 77.0 °F | 4.24 in. |
| June | 61.9 °F | 84.5 °F | 4.05 in. |
| July | 66.3 °F | 88.1 °F | 4.03 in. |
| August | 64.6 °F | 86.5 °F | 3.48 in. |
| September | 57.9 °F | 80.4 °F | 4.48 in. |
| October | 45.0 °F | 70.3 °F | 3.52 in. |
| November | 34.2 °F | 60.0 °F | 3.58 in. |
| December | 29.0 °F | 50.7 °F | 3.66 in. |
| Annual | 45.3 °F | 68.8 °F | 44.62 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |