Tysons, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.9 °F (low) to 65.5 °F (high). Annual precipitation averages 45.2 Inches. Tysons 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 | 25.6 °F | 42.7 °F | 3.1 in. |
| February | 27.1 °F | 46.0 °F | 2.71 in. |
| March | 33.7 °F | 54.4 °F | 3.91 in. |
| April | 43.8 °F | 66.2 °F | 3.39 in. |
| May | 53.4 °F | 74.3 °F | 4.47 in. |
| June | 62.3 °F | 82.5 °F | 4.46 in. |
| July | 67.2 °F | 86.9 °F | 4.53 in. |
| August | 65.5 °F | 85.1 °F | 3.55 in. |
| September | 58.9 °F | 78.4 °F | 4.4 in. |
| October | 47.0 °F | 66.8 °F | 3.78 in. |
| November | 36.7 °F | 56.4 °F | 3.22 in. |
| December | 29.9 °F | 46.6 °F | 3.64 in. |
| Annual | 45.9 °F | 65.5 °F | 45.16 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 |