Izaak Walton Park Rainfall Forecast

  • 15%
  • 5%
  • 5%
  • 10%
  • 5%
  • 10%
  • 20%
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  • Rainfall Probability Forecast NOAA

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Izaak Walton Park Rainfall Statistics

September Rainfall

Washington/Dulles International Airport, DC (7.5 miles)

  • Total Rainfall September

    0.2in

  • Daily Average September

    0.01in

  • Wettest Day 10 September, 2025

    0.1in

  • Wet Days September

    4/18 (22%)

Climate (2010–Present)

Washington/Dulles International Airport, DC (7.5 miles)

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  • Annual Average 2020–2024

    38.7in

  • Monthly Average 2020–2025

    3.1in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 25 October, 2021

    2.4in
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