Lake Sacajawea Rainfall Forecast

  • 10%
  • 65%
  • 5%
  • No Rain
  • 5%
  • 5%
  • 15%
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  • Rainfall Probability Forecast NOAA

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Lake Sacajawea Rainfall Statistics

September Rainfall

Tri-Cities Airport (18.6 miles)

  • Total Rainfall September

    0.1in

  • Daily Average September

    0.01in

  • Wettest Day 6 September, 2025

    0.1in

  • Wet Days September

    2/13 (15%)

Climate (2010–Present)

Tri-Cities Airport (18.6 miles)

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  • Annual Average 2020–2024

    6.6in

  • Monthly Average 2020–2025

    0.6in

  • Daily Average 2020–2025

    0.02in

  • Wettest Day 17 May, 2025

    0.7in
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