Join  COCORAHS. An exciting opportunity for citizen science precipitation reporting and monitoring.

CoCoRaHS (pronounced KO-ko-rozz) is a grassroots volunteer network of backyard weather observers of all ages and backgrounds working together to measure and map precipitation (rain, hail and snow) in their local communities. By using low-cost measurement tools, stressing training and education, and utilizing an interactive Web-site, our aim is to provide the highest quality data for natural resource, education and research applications. The only requirements to join are an enthusiasm for watching and reporting weather conditions and a desire to learn more about how weather can affect and impact our lives.

Our Web page provides the ability for our observers to see their observations mapped out in "real time", as well as providing a wealth of information for our data users.

For more information, please click here: Information about CoCoRaHS

If you would like to sign-up as a volunteer observer and become part of our expanding network, please click here: "Join the CoCoRaHS Network".



Complimentary training is provided to help you become an effective weather observer.  Please check out your state page for a list of current training sessions in your local area.  If none are taking place at the current time, watch our YouTube animations or Training Slide Shows and read our on-line training information.