Humid subtropical
Union Mill, Virginia
Fairfax County, Virginia · Population 4.4k · 213 ft elevation
Living in Union Mill
Union Mill has a humid subtropical climate: hot summers (July highs around 85°F) and cold winters (January lows around 24°F).
Precipitation is wet at about 44″ a year, and it gets light snow (19″ a season).
Skies are sunny (60% of possible sunshine). Summers get sticky, with about 47 muggy days a year.
Air quality is moderate: a median AQI of 42, with about 1 unhealthy-air day in the latest year.
Union Mill at a glance
- Population
- 4.4k
- Elevation
- 213 ft
- Average daily high
- 65°F45th percentile
- Average daily low
- 45°F47th percentile
- Annual precipitation
- 44″52th percentile
- Annual snowfall
- 19″56th percentile
- Sunshine hours per year
- 2,674 hrs34th percentile
- Median AQI
- 4252th percentile
- Median home value
- $942k96th percentile
- Median rent
- $2,581/mo96th percentile
- Median household income
- $245k99th percentile
- Property tax rate
- 1.06%55th percentile
- Top state income-tax rate
- 5.8%
- Sales tax (state + local)
- 5.8%
- Unemployment rate
- 1.7%
- Homes with broadband
- 100%99th percentile
- Walkability index
- 6.518th percentile
- Average commute
- 34 min
- Math proficiency (8th grade)
- 86%96th percentile
- Reading proficiency (8th grade)
- 82%
- Overall natural-hazard risk
- 9564th percentile
- Outdoor access
- 6363th percentile
- Public land within 10 miles
- 6%
- Public land within 30 miles
- 4%
- Mountain relief within 30 miles
- 525 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 43°F | 24°F | 3.3″ | 6.5″ | 153 hrs |
| Feb | 46°F | 25°F | 2.6″ | 7.5″ | 163 hrs |
| Mar | 54°F | 32°F | 3.8″ | 2.0″ | 198 hrs |
| Apr | 66°F | 42°F | 3.4″ | — | 229 hrs |
| May | 72°F | 53°F | 4.3″ | — | 256 hrs |
| Jun | 80°F | 62°F | 4.1″ | — | 296 hrs |
| Jul | 85°F | 67°F | 4.3″ | — | 317 hrs |
| Aug | 83°F | 66°F | 3.5″ | — | 291 hrs |
| Sep | 77°F | 58°F | 4.2″ | — | 237 hrs |
| Oct | 66°F | 46°F | 3.5″ | — | 204 hrs |
| Nov | 57°F | 35°F | 3.1″ | 0.1″ | 178 hrs |
| Dec | 47°F | 29°F | 3.4″ | 2.4″ | 150 hrs |
Near Union Mill
- Fairfax Station, VA · 12k
- Braddock, VA · 6.4k
- Yorkshire, VA · 11k
- Fair Lakes, VA · 8.6k
- Manassas Park, VA · 17k
- Centreville, VA · 72k
- Burke Centre, VA · 17k
- Fair Oaks, VA · 35k
Largest places in Virginia
- Virginia Beach, VA · 457k
- Chesapeake, VA · 251k
- Arlington, VA · 235k
- Norfolk, VA · 235k
- Richmond, VA · 228k
- Newport News, VA · 185k
- Alexandria, VA · 157k
- Hampton, VA · 137k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology