Grand Coulee Dam Airport Rainfall Forecast

  • 30%
  • 15%
  • 15%
  • 15%
  • 20%
  • 20%
  • 10%
Graph Plots Open in Graphs

  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Grand Coulee Dam Airport Rainfall Statistics

March Rainfall

Omak Airport (42.3 miles)

  • Total Rainfall March

    0.3in

  • Daily Average March

    0.02in

  • Wettest Day 13 March, 2026

    0.2in

  • Wet Days March

    3/15 (20%)

Climate (2010–Present)

Omak Airport (42.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Annual Average 2021–2025

    11.2in

  • Monthly Average 2021–2026

    0.9in

  • Daily Average 2021–2026

    0.03in

  • Wettest Day 10 December, 2022

    0.9in
Get WillyWeather+ to remove ads