Grinnell Regional Airport Rainfall Forecast

  • 15%
  • 45%
  • 90%
  • 5%
  • 40%
  • 75%
  • 25%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Grinnell Regional Airport Rainfall Statistics

April Rainfall

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

  • Total Rainfall April

    3.3in

  • Daily Average April

    0.2in

  • Wettest Day 9 April, 2026

    1.2in

  • Wet Days April

    7/22 (32%)

Climate (2010–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Annual Average 2021–2025

    16.6in

  • Monthly Average 2021–2026

    1.4in

  • Daily Average 2021–2026

    0.05in

  • Wettest Day 1 June, 2023

    2.1in
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