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

Residents of Maine as well as New Hampshire are welcome to participate in the CoCoRaHS Program!

You can let the National Weather Service, media, researchers, farmers and a wide range of other users know how much rain, hail, or snow measured in your backyard or schoolyard by joining the program. This program will help a variety of users see and study the variability of precipitation across Maine and New Hampshire. The accumulated precipitation data will be available to anyone using the web. If you'd like to contribute valuable precipitation information unique to your location, then this program is for you!

The CoCoRaHS program began in 1998 after devastating floods in the Denver, Colorado area missed all the official rain gauges. In the years since, the CoCoRaHS network has grown to include over 16,000 observers in 35 states.

Volunteer Observers and Local Volunteer Coordinators are now needed to help grow this network across Maine and New Hampshire. Volunteer Observers are the backbone of the CoCoRaHS program. Observers record precipitation information using the recommended 4" rain gauge and enter their observations onto the CoCoRaHS webpage. Volunteer Coordinators work with the State and National Coordinators and will help answer new observer questions,contact new observers to help start reporting, and help with training - although training slides and information are available at the CoCoRaHS web site. Other Volunteer Coordinator and Volunteer Observer duties along with answers to frequently asked questions can be found searching through the tabs on the CoCoRaHS main web page.

Please visit the CoCoRaHS web site at to learn more about the program and use the Join CoCoRaHS link to sign up as either an Observer or Local Coordinator! If you have any questions, the state Coordinator for Western and Southern Maine and all but Southwest New Hampshire is Stacie Hanes and she can be reached directly by sending an email to The Co-Coordinator for the state of New Hampshire is Dr. Mary Stampone and she can be reached directly by sending an email to

Thanks for your interest in CoCoRaHS - Because Every Drop Counts!

Check out the Daily CoCoRaHS Precipitation Summary to see your report!

New Tutorial on CoCoRaHS Liquid Equivalent Precipitation Measurements.