Iron Gate, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 43.6 °F (low) to 67.3 °F (high). Annual precipitation averages 40.8 Inches. Iron Gate 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 | 24.6 °F | 44.6 °F | 3.09 in. |
| February | 26.4 °F | 49.0 °F | 2.73 in. |
| March | 32.5 °F | 57.5 °F | 3.57 in. |
| April | 41.7 °F | 69.1 °F | 3.65 in. |
| May | 51.3 °F | 76.6 °F | 4.02 in. |
| June | 59.7 °F | 83.4 °F | 4.29 in. |
| July | 63.7 °F | 87.0 °F | 3.6 in. |
| August | 62.6 °F | 85.4 °F | 3.16 in. |
| September | 55.9 °F | 79.4 °F | 3.47 in. |
| October | 43.8 °F | 69.3 °F | 2.99 in. |
| November | 33.2 °F | 58.3 °F | 2.94 in. |
| December | 27.8 °F | 48.5 °F | 3.32 in. |
| Annual | 43.6 °F | 67.3 °F | 40.83 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |