Deerfield, Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.3 °F (low) to 64 °F (high). Annual precipitation averages 44.3 Inches. Deerfield is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.1 °F | 41.9 °F | 3.31 in. |
| February | 24.4 °F | 45.6 °F | 2.8 in. |
| March | 30.4 °F | 53.4 °F | 3.82 in. |
| April | 39.5 °F | 64.8 °F | 3.91 in. |
| May | 49.1 °F | 72.6 °F | 4.59 in. |
| June | 57.3 °F | 80.0 °F | 4.66 in. |
| July | 61.3 °F | 83.6 °F | 3.99 in. |
| August | 60.0 °F | 82.5 °F | 3.65 in. |
| September | 53.1 °F | 76.6 °F | 3.95 in. |
| October | 41.6 °F | 66.1 °F | 3.1 in. |
| November | 31.7 °F | 54.8 °F | 3.03 in. |
| December | 25.6 °F | 45.5 °F | 3.46 in. |
| Annual | 41.3 °F | 64 °F | 44.27 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |