Chilhowie, Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41 °F (low) to 65.4 °F (high). Annual precipitation averages 46.6 Inches. Chilhowie 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.6 °F | 43.7 °F | 4.45 in. |
| February | 25.0 °F | 47.6 °F | 3.25 in. |
| March | 31.2 °F | 56.1 °F | 4.04 in. |
| April | 39.5 °F | 66.1 °F | 4.35 in. |
| May | 48.2 °F | 74.0 °F | 4.53 in. |
| June | 57.1 °F | 80.6 °F | 4.15 in. |
| July | 60.2 °F | 83.7 °F | 4.49 in. |
| August | 59.3 °F | 83.0 °F | 4.0 in. |
| September | 52.9 °F | 77.9 °F | 3.3 in. |
| October | 39.9 °F | 67.8 °F | 2.87 in. |
| November | 30.5 °F | 56.9 °F | 3.14 in. |
| December | 25.8 °F | 47.2 °F | 4.05 in. |
| Annual | 41 °F | 65.4 °F | 46.62 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Dfb - Humid Continental Mild Summer, Wet All Year |