Arlington County Climate
Arlington County, Virginia
Avg Annual Temp
59.3°F
Annual Precip
41.8"
Annual Snowfall
13.7"
Extreme Heat Days
40
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Arlington County Weather
Warm Urban Heat Island
Arlington's 59.3°F average temperature is more than 5 degrees warmer than the national median. This urban county experiences a hot, humid subtropical climate.
One of Virginia's Warmest Spots
Averaging 59.3°F, Arlington is significantly warmer than the 55.9°F state average. It is also drier than much of the state, receiving 41.8 inches of rain.
Hotter Than the Rural Interior
Arlington faces 40 extreme heat days, far more than neighboring mountain counties. Its July average of 81.0°F is the highest among the counties in this group.
Hot Summers and Brief Winters
Summers are intense with 40 days over 90°F and high humidity. Winters are mild at 39.7°F, though the county still sees a surprising 13.7 inches of snow annually.
Focus on Cooling and Commuting
Invest in high-quality air conditioning to handle the 40+ days of extreme heat. Residents should also prepare for urban snow impacts, which can disrupt transit despite mild averages.
Frequently Asked Questions
What is the average temperature in Arlington County?
How much rain does Arlington County get?
Does it snow in Arlington County?
How hot does Arlington County get in summer?
How cold are winters in Arlington County?
Track your own weather in Arlington County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.