Potomac River - McKays Beach Rainfall Forecast

  • 10%
  • 80%
  • 80%
  • 35%
  • No Rain
  • 10%
  • 25%
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Potomac River - McKays Beach Rainfall Statistics

September Rainfall

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (7.5 miles)

  • Total Rainfall September

    0.5in

  • Daily Average September

    0.04in

  • Wettest Day 7 September, 2025

    0.3in

  • Wet Days September

    4/15 (27%)

Climate (2010–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (7.5 miles)

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  • Annual Average 2020–2024

    38.5in

  • Monthly Average 2020–2025

    3.2in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 9 June, 2021

    3.6in
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