Portola Rainfall Forecast

  • 30%
  • 40%
  • 25%
  • 5%
  • 5%
  • 25%
  • 25%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Portola Rainfall Statistics

September Rainfall

Reno/Stead (32.9 miles)

  • Total Rainfall September

    0.1in

  • Daily Average September

    0.01in

  • Wettest Day 10 September, 2025

    0.1in

  • Wet Days September

    1/18 (6%)

Climate (2011–Present)

Reno/Stead (32.9 miles)

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  • Annual Average 2020–2024

    5.1in

  • Monthly Average 2020–2025

    0.4in

  • Daily Average 2020–2025

    0.02in

  • Wettest Day 24 October, 2021

    3in
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