Mason Neck State Park Rainfall Forecast

  • 20%
  • No Rain
  • 10%
  • 10%
  • 5%
  • 10%
  • 20%
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  • Rainfall Probability Forecast NOAA

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Mason Neck State Park Rainfall Statistics

September Rainfall

Fort Belvoir (4.3 miles)

  • Total Rainfall September

    1.3in

  • Daily Average September

    0.1in

  • Wettest Day 7 September, 2025

    0.7in

  • Wet Days September

    5/18 (28%)

Climate (2010–Present)

Fort Belvoir (4.3 miles)

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  • Annual Average 2020–2024

    34.8in

  • Monthly Average 2020–2025

    2.9in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 22 December, 2021

    3.2in
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