Potomac River - Four Mile Run Entrance Rainfall Forecast

  • 65%
  • 25%
  • 50%
  • 55%
  • 30%
  • 15%
  • 35%
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  • Rainfall Probability Forecast NOAA

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Potomac River - Four Mile Run Entrance Rainfall Statistics

August Rainfall

Washington/Reagan National Airport, DC (0.6 miles)

  • Total Rainfall August

    1.8in

  • Daily Average August

    0.6in

  • Wettest Day 2 August, 2026

    1.7in

  • Wet Days August

    2/5 (40%)

Climate (2021–2025)

Washington/Reagan National Airport, DC (0.6 miles)

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  • Annual Average 2021–2025

    39.2in

  • Monthly Average 2021–2026

    3.1in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 9 July, 2022

    4.1in
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