Daylight through the yearLongest day (Jun 21): 14 h 53 min5:44 am – 8:36 pmShortest day (Dec 21): 9 h 28 min7:23 am – 4:50 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 88°F, lows 71°FColdest month January: highs 45°F, lows 28°F41 in of rain a year, on about 70 dayswettest month July12 in of snow a year, on about 6 days30 days above 90°F, 76 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Quantico Mcas station, 13 mi away
Nearby landmarksSandy Pointcape · 2.7 miSouth Branch Hiking and Mountain Bike Trailtrailhead · under a mileYard Sale Mountain Bike Trailtrailhead · under a mileHigh Pointcape · 4.0 miPohick Bay Regional Park Non - Electric Family Campgroundcampground · 1.7 miPohick Baybay · 1.7 miSource: USGS Geographic Names Information System
Parks and public landsMason Neck State Parkstate park · 1.5 miOccoquan Bay National Wildlife Refugenational wildlife refuge · 2.2 mi · 634 acresElizabeth Hartwell Mason Neck National Wildlife Refugenational wildlife refuge · 2.4 mi · 1,468 acresMeadowood Recreation Areapark · within reach · 806 acresPohick Bay Regional Parkpark · under a mile · 1,001 acresGunston Hall Museum Estatepublic land · 2.1 mi · 374 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes1 of magnitude 3 or more within 50 miles since 19700 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 3.6 on 16 Jul 201042 mi away, near Barnesville, MarylandMost recent: magnitude 3.6 on 16 Jul 201042 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowFairfax City, VA, compared with all US countiesHighest-rated hazardsHurricane Relatively LowHeat wave Relatively LowSource: FEMA National Risk Index (county level)
Air quality78% of days had good air in 2025284 of 365 days measured80 moderate, 1 unhealthy for sensitive groups daysMedian index 42, worst day 124main pollutant: ozoneSource: US EPA Air Quality Index, Fairfax County monitors, VA
Drinking waterFairfax County Water Authorityserves 1,121,613 people from surface waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation132 ft40 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalFort Belvoir Community Hospital3.9 miPost officeLorton Post Office2.1 miTown hallOccoquan Town Hall3.2 miPoliceOccoquan Police Department3.0 miFire stationFairfax County Fire and Rescue Department Station 20 Gunstonunder a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi1 school1 elementaryElementaryGunston Elementary Schoolunder a mileCollegeNorthern Virginia Community College - Medical Education Campus6.2 miSource: USGS National Structures Dataset
Getting aroundAirportRonald Reagan Washington National Airport DCA15 miInterstateI-951.5 miUS highwayUS 11.7 miAmtrakAuto Train Station LOR2.4 miRailWoodbridgeVirginia Railway Express (VRE)2.6 miCoachWoodbridge Destination StationGreyhound2.6 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 22199 ZIP area.
