COCORAHS CELEBRATED 25 YEARS IN 2023

CoCoRaHS officially began on June 17, 1998.  With a few observers along Colorado's Front Range, we had no idea that the network would become what it is today, with over 27,500 active observers in the United States, Canada, Puerto Rico, the U.S. Virgin Islands, Guam, and the Bahamas. A truly remarkable effort by all of you.  Here's to many more successful years ahead. To read about the first 25 years of CoCoRaHS click here: History

The saying "Rain doesn’t fall the same on all" really proves to be true. How often have you seen it rain in your neighborhood, and a few blocks away, not a drop has fallen?

If you get the chance, please take a moment to tell a friend or neighbor about this exciting grassroots effort of citizens measuring precipitation right in their own backyards.  It's easy to join, takes only five minutes a day, and is a fun way to learn about this wonderful natural resource that falls from the sky.  Your observations continue to give scientists an ever clearer picture of where and how much precipitation falls throughout our communities.

ABOUT  COCORAHS
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, emphasizing training and education, and utilizing an interactive Website, we aim 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 our lives.

Our Web page allows our observers to see their observations mapped in "real time" and provides 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 online training information.