Chantilly, Virginia
[Washington Dulles International Airport]

Latitude: 38.9349
Longitude: -77.4473
Elevation 290 feet

Data from National Weather Service: Forecast Office: LWX; Station Code: IAD; GHCN ID: USW00093738

Station Records:
   Max High: 105° recorded on Jul 22, 2011
   Min High: 6° recorded on Jan 19, 1994
   Max Low: 79° recorded on Aug 8, 2007
   Min Low: -18° recorded on Jan 22, 1984
   Max Precip: 10.67" recorded on Jun 21, 1972
   Max Snowfall: 22.5" recorded on Feb 11, 1983

 

 

 

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Weather Over The Last 8 Weeks:
High Temps Low Temps Precip 7 Day Avg

 

This station has 23,295 daily observations. Dated from April 1, 1960 until July 14, 2025.

The data for this station is 97.5% complete, 97.7% of the daily records are available, of which 99.8% of that data is complete.

 

Today (July 15) in Weather History for Chantilly, Virginia

Records For This Day:

Max High: 99° recorded in 2024
Min High: 77° recorded in 2000, 1967
Max Low: 75° recorded in 2024
Min Low: 53° recorded in 1987, 1981
Max Precip: 1.01" recorded in 2005

No Snowfall Recorded Today

 

 

Detailed Forecast