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Join CoCoRaHS
 
CoCoRaHS
CoCoRaHs logo CoCoRaHS is an acronym for the Community Collaborative Rain, Hail and Snow Network. CoCoRaHS is a unique, non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail and snow). The main goal is to provide the highest quality data for natural resource, education and research applications.

 

Anyone can help. The only requirements are an enthusiasm for watching and reporting weather conditions and a desire to learn more about how weather can affect and impact our lives.

 

CoCoRaHS officially began on June 17, 1998. Starting with a few observers along Colorado's Front Range, the network now has over 25,000 active observers in the United States, Canada, Puerto Rico, the U.S. Virgin Islands, Guam and the Bahamas! This is the 25th anniversary of CoCoRaHS.
In the picture: This is the 25th anniversary of CoCoRaHS.

 

 

Each year, there is a major push to recruit CoCoRaHS observers in March.
In the picture: Each year, there is a major push to recruit CoCoRaHS observers in March.
 

There is a friendly CoCoRaHS recruiting contest across the country in March. The object of the game is to see who can recruit the most new volunteers.

The contest is broken down into two categories: "Traditional Count" (the state recruiting the greatest number of new observers in March) and "Per Capita" (the state recruiting the greatest number of new observers per its population). The winning state in each category receives the "CoCoRaHS Cup" to keep and exhibit for a year.

 

In the videos: An introduction to CoCoRaHS and March, 2023 contest trailer.