Potomac River - Cornfield Harbor Rainfall Forecast

  • 10%
  • 20%
  • 35%
  • 40%
  • 15%
  • 25%
  • 45%
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  • Rainfall Probability Forecast NOAA

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Potomac River - Cornfield Harbor Rainfall Statistics

August Rainfall

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 miles)

  • Total Rainfall August

    1in

  • Daily Average August

    0.2in

  • Wettest Day 3 August, 2026

    0.5in

  • Wet Days August

    4/6 (67%)

Climate (2021–2025)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (6.8 miles)

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  • Annual Average 2021–2025

    35.4in

  • Monthly Average 2021–2026

    2.6in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 10 December, 2023

    2.5in
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