| Vienna, VA | Haymarket, VA | United States |
Rainfall | 42.6 | 43.3 | 38.1 |
Snowfall | 21.4 | 20.2 | 27.8 |
Precipitation Days | 116.6 | 113.3 | 106.2 |
Sunny | 202 | 198 | 205 |
Avg. July High | 86.2 | 86.9 | 85.8 |
Avg. Jan. Low | 24.2 | 23.6 | 21.7 |
Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
UV Index | 4 | 4 | 4.3 |
Elevation ft. | 354 | 367 | 2443 |