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Climate & Weather Averages in Reston, Virginia, USA

Currently: 72 °F. Partly sunny. (Weather station: Washington-Dulles International Airport, USA). See more current weather

Annual Weather Averages Near Reston

Averages are for Washington-Dulles International Airport, which is 5 miles from Reston.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Reston

High Temp: 88 °F

Low Temp: 25 °F

Mean Temp: 56 °F

Precipitation: 3.65"

Humidity: 66%

Dew Point: 44 °F

Wind: 10 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Reston

High Temp: 43 °F

Low Temp: 25 °F

Mean Temp: 34 °F

Precipitation: 2.91"

Humidity: 64%

Dew Point: 23 °F

Wind: 12 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Reston

High Temp: 46 °F

Low Temp: 27 °F

Mean Temp: 36 °F

Precipitation: 2.71"

Humidity: 62%

Dew Point: 24 °F

Wind: 12 mph

Pressure: 30.10 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Reston

High Temp: 55 °F

Low Temp: 33 °F

Mean Temp: 44 °F

Precipitation: 3.43"

Humidity: 59%

Dew Point: 30 °F

Wind: 13 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Reston

High Temp: 67 °F

Low Temp: 43 °F

Mean Temp: 55 °F

Precipitation: 3.53"

Humidity: 59%

Dew Point: 40 °F

Wind: 13 mph

Pressure: 30.00 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Reston

High Temp: 75 °F

Low Temp: 53 °F

Mean Temp: 64 °F

Precipitation: 4.86"

Humidity: 67%

Dew Point: 52 °F

Wind: 10 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Reston

High Temp: 84 °F

Low Temp: 62 °F

Mean Temp: 73 °F

Precipitation: 4.21"

Humidity: 69%

Dew Point: 62 °F

Wind: 9 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Reston

High Temp: 88 °F

Low Temp: 67 °F

Mean Temp: 77 °F

Precipitation: 4.17"

Humidity: 68%

Dew Point: 66 °F

Wind: 8 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Reston

High Temp: 87 °F

Low Temp: 65 °F

Mean Temp: 76 °F

Precipitation: 3.71"

Humidity: 70%

Dew Point: 65 °F

Wind: 8 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Reston

High Temp: 79 °F

Low Temp: 58 °F

Mean Temp: 69 °F

Precipitation: 4.03"

Humidity: 71%

Dew Point: 59 °F

Wind: 9 mph

Pressure: 30.07 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Reston

High Temp: 68 °F

Low Temp: 45 °F

Mean Temp: 57 °F

Precipitation: 3.94"

Humidity: 71%

Dew Point: 47 °F

Wind: 9 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Reston

High Temp: 57 °F

Low Temp: 35 °F

Mean Temp: 46 °F

Precipitation: 3.13"

Humidity: 66%

Dew Point: 35 °F

Wind: 11 mph

Pressure: 30.14 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Reston

High Temp: 47 °F

Low Temp: 29 °F

Mean Temp: 38 °F

Precipitation: 3.16"

Humidity: 68%

Dew Point: 28 °F

Wind: 11 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthJuly (77 °F avg)
Coldest MonthJanuary (34 °F avg)
Wettest MonthMay (4.86" avg)
Windiest MonthMarch (13 mph avg)
Annual precip.43.78" (per year)

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