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Fairfax
Weather averages
ClimateForecastAprilMay >>

Climate in Fairfax (Virginia), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Fairfax, the United States of America

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Fairfax, the United States of America

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* Data from: Washington DC, the United States of America (23 KM, 14 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Fairfax, the United States of America

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* Data from: Washington DC, the United States of America (23 KM, 14 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Fairfax, the United States of America

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Fairfax, the United States of America

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Fairfax, the United States of America

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* Data from: Washington DC, the United States of America (23 KM, 14 Miles).

Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average monthly wind speed in Fairfax, the United States of America

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* Data from: Washington DC, the United States of America (23 KM, 14 Miles).

Weather Forecasts for Fairfax

Fri   Apr 19
15°C | 10°C
S 14 km/h
1.8 mm
broken clouds and chance of rain

broken clouds and chance of rain

hourly forecast
Sat   Apr 20
22°C | 11°C
NW 29 km/h
0.4 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

hourly forecast
Sun   Apr 21
15°C | 6°C
NW 18 km/h
broken clouds and no rain

broken clouds and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Fairfax in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Fairfax?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Fairfax?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Fairfax?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Fairfax?
    June tops the wettest month list with 138 mm of rainfall.
  • Which is the driest month in Fairfax?
    February is the driest month with 65 mm of precipitation.
  • Which is the sunniest month in Fairfax?
    June is the sunniest month with an average of 282 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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