Fairfax Rainfall Forecast

  • 100%
  • 10%
  • 5%
  • 5%
  • 15%
  • 5%
  • No Rain
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Fairfax Rainfall Statistics

September Rainfall

Washington/Dulles International Airport, DC (9.3 miles)

  • Total Rainfall September

    1.6in

  • Daily Average September

    0.1in

  • Wettest Day 3 September, 2026

    0.6in

  • Wet Days September

    6/23 (26%)

Climate (2021–2025)

Washington/Dulles International Airport, DC (9.3 miles)

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  • Annual Average 2021–2025

    34.9in

  • Monthly Average 2021–2026

    3in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 25 October, 2021

    2.4in
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