Welcome to CoCoRaHS!

 Community Cooperative Rain, Hail, and Snow (CoCoRaHS) Network  

Volunteer Observers and Local Volunteer Coordinators are now needed to help grow this network across Minnesota and Wisconsin!! It's fun, easy and only takes a few minutes.

Volunteers are the backbone of the CoCoRaHS program. Observers register to participate, then enter their snow, rain, and hail observations onto the CoCoRaHS webpage;

Please visit theCoCoRHaS Home Page to sign up and become an observer today!

Click on the Map Below for Today's Snow/Rain Reports! 

cocorahs map


Why is this information important?
This information helps a variety of users see and study the variability of precipitation. Your report is sent directly to the National Weather Service for use in forecasting and issuing all kinds of winter and summer weather warning. Your report is also used by the media, researchers, farmers and a wide range of other users interested in knowing how much rain, hail, or snow was measured in your backyard! 

The information is available to anyone using the internet. This is a great program for school classes to study the weather! If you'd like to contribute valuable precipitation information unique to your location, then this program is for you!

Since the CoCoRaHS program began in 1998,  the network has grown to include nearly 30,000 active observers in all 50 states. 


Training and Additional Information


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


View a printable (pdf) training guide that includes how to set up your rain gage, measure snow, and report it online.


You can purchase an offical 4 inch diameter raingage at the CoCoRahs Store for a discounted price as a CoCoRHaS volunteer!

For any questions, please contact Kevin.



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