Climate change in Arlington County, Virginia
Since 1979, Arlington County, Virginia has warmed 3.2°F, with 10 more days above 90°F, 17 more nights above 70°F and 5% more precipitation a year. Its climate in 1996–2025 is most like Mathews County, VA's was in 1951–1980.
- Average temperature: +3.2°F
- Summer highs (Jun–Aug): +2.6°F
- Winter lows (Dec–Feb): +4.3°F
- Precipitation: +5%
- Wettest day of the year: +14%
- Longest dry spell: +1 days
- Days above 90°F: +10 days
- Nights above 70°F: +17 days
- Freezing nights: −24 days
- Frost-free season: +35 days
- Muggy days: +8 days
- Summer heat index (Jun–Aug): +3.5°F
- Extreme fire-weather days: +9 days
- Snowfall: −27%
- Snowy days (1 inch or more): −1 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.