The Community Collaborative Rain, Hail and Snow Network (CoCoRaHS

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).   By using low-cost measurement tools, stressing training and education, and utilizing an interactive Web-site, the goal is to provide the highest quality data for natural resource, education and research applications. CoCoRaHS operates in most states across the country.

CoCoRaHS Home

Texas Rainfall Map

US Rainfall Map


Sign up for CoCoRaHS today!

Snow Observation Training

  Click any county to see an expanded view

Click on a county name to see where CoCoRaHS observers are located in your area. You will make a significant contribution by joining and participating with others in the CoCoRaHS program.  

Still Need More Information about CoCoRaHS?

Easy enough! Click here to go to the CoCoRaHS website for all the details and more! Or contact or or call us at 830 629 0130. 

PDF files may be viewed using the freely available Adobe Reader.

Click Here For Information on the Community Collaborative Rain, Hail and Snow Network


Just click here to sign up as a CoCoRaHS Volunteer Observer or download a .pdf version of the CoCoRaHS observer application and return it as soon as possible.


Thank You to All Our CoCoRaHS Observers! is the U.S. government's official web portal to all federal, state and local government web resources and services.