National Arboretum Rainfall Forecast

  • 25%
  • No Rain
  • No Rain
  • 40%
  • 40%
  • 5%
  • No Rain
Graph Plots Open in Graphs

  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

National Arboretum Rainfall Statistics

August Rainfall

College Park Airport (5 miles)

  • Total Rainfall August

    1.3in

  • Daily Average August

    0.1in

  • Wettest Day 17 August, 2025

    0.5in

  • Wet Days August

    6/21 (29%)

Climate (2010–Present)

College Park Airport (5 miles)

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

  • Annual Average 2020–2024

    23.1in

  • Monthly Average 2020–2025

    3.1in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 19 July, 2025

    12.2in
Get WillyWeather+ to remove ads