Holly Knoll Park Rainfall Forecast

  • 80%
  • 20%
  • No Rain
  • No Rain
  • 5%
  • 15%
  • 35%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Holly Knoll Park Rainfall Statistics

September Rainfall

Washington/Dulles International Airport, DC (6.8 miles)

  • Total Rainfall September

    3.6in

  • Daily Average September

    0.2in

  • Wettest Day 22 September, 2026

    1.1in

  • Wet Days September

    9/27 (33%)

Climate (2021–2025)

Washington/Dulles International Airport, DC (6.8 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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