Irwin Rainfall Forecast

  • 80%
  • 25%
  • 5%
  • 40%
  • 45%
  • 75%
  • 65%
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  • Rainfall Probability Forecast NOAA

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Irwin Rainfall Statistics

May Rainfall

Pittsburgh - Allegheny County Airport (11.2 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)

Pittsburgh - Allegheny County Airport (11.2 miles)

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  • Annual Average 2021–2025

    38.8in

  • Monthly Average 2021–2026

    3.2in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 1 September, 2021

    2.3in
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