Marietta Rainfall Forecast

  • 20%
  • 15%
  • 15%
  • 20%
  • 35%
  • 30%
  • 10%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Marietta Rainfall Statistics

May Rainfall

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

  • Total Rainfall May

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  • Daily Average May

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  • Wettest Day 1 May, 2026

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  • Wet Days May

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Climate (2010–Present)

Marshalltown, Marshalltown Municipal Airport (4.3 miles)

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  • Annual Average 2021–2025

    26.6in

  • Monthly Average 2021–2026

    2.3in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 28 July, 2024

    3.2in
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