Ottawa Rainfall Forecast

  • 5%
  • 5%
  • 70%
  • 55%
  • 30%
  • 45%
  • 60%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Ottawa Rainfall Statistics

September Rainfall

Lambertville, Toledo Suburban Airport (5.6 miles)

  • Total Rainfall September

    1.3in

  • Daily Average September

    0.1in

  • Wettest Day 4 September, 2026

    0.8in

  • Wet Days September

    5/14 (36%)

Climate (2021–2025)

Lambertville, Toledo Suburban Airport (5.6 miles)

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  • Annual Average 2021–2025

    0.5in

  • Monthly Average 2021–2026

    0.4in

  • Daily Average 2021–2026

    0.01in

  • Wettest Day 11 March, 2026

    2.2in
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