Join volunteers across the U.S., Canada, and the Bahamas who report precipitation online to ensure measurements of snow, rain and hail are available for your area.

This March, the Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) is recruiting volunteer weather observers as part of their “March Madness” campaign, a nationwide competition to see which state can recruit the most volunteers.

All you need to do is sign up, attend a free online training course, grab a high-quality rain gauge, and you’re ready to start measuring precipitation in your backyard.

The data you provide will help improve weather forecasting models, forecasts of river stages and flood levels on local waterways, and will inform National Weather Service thunderstorm and flash flood warnings. For more information on CoCoRaHS, contact kevin.erb@wisc.edu.

Interested in exploring additional community science opportunities? Just around the corner is Citizen Science Month, April 2023. Find other ways to get involved with locally driven or online science projects on the SciStarter Event Page. Who knows what you’ll discover!