CoCoRaHS Precipitation Network

CoCoRaHS Canada (Community Collaborative Rain Hail and Snow) is a volunteer network of mostly citizens and organizations (e.g. watershed groups, conservation authorities, agriculture organizations, etc.) that measure and report precipitation daily through the CoCoRaHS website or Smartphone App.

In Canada, the Meteorological Service of Canada (MSC) uses this data to help monitor the extent and severity of storm systems. Agriculture and Agri-Food Canada use it in monitoring for droughts. Many other organizations and individuals use this important information regularly, including flood forecast agencies and emergency responders.

CoCoRaHS is always looking for new volunteers!

It’s easy to get involved! If you think you might be interested in being part of this vital network of volunteers or know someone else who might be, check out the CoCoRaHS Canada website where you can easily find all the information and training materials to get you started. You can start reporting as soon as you receive your gauge.

Don’t be concerned about reporting every day! You can take breaks from reporting and simply submit a multi-day report on the first day you start reporting again.

To register, please visit: Become a CoCoRaHS Observer in Canada.

For questions, please contact: Doug Leonard at Douglas.leonard@ec.gc.ca

The official CoCoRaHS precipitation gauge set to measure rainfall.
The official CoCoRaHS precipitation gauge set to measure rainfall.
Volunteer measuring snowfall and snow pack depth with a ruler.
Volunteer measuring snowfall and snow pack depth with a ruler.
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