Western Regional Climate Center

Providing Climate Services Since 1986
About Us
Historical Data
Projects & Research
Specialty Climate
Station Metadata
Terms & Acronyms

Community Collaborative Rain, Hail, & Snow Network (CoCoRaHS)

COCORAHS IS NOW IN ALL 50 STATES (as well as the District of Columbia)

WANTED! Volunteers to help study storms.

The saying "Rain doesn't fall the same on all" really proves to be true. How often have you seen it rain in your neighborhood and a few blocks away not a drop has fallen. CoCoRaHS is now the largest provider of daily precipitation observations in the United States. The program began in Colorado in 1998 and now CoCoRaHS is in all fifty states as well as most Canadian provinces, the Commonwealth of Puerto Rico, and the U.S. Virgin Islands! CoCoRaHS in Nevada began in March 1, 2007, and we are always looking for new observers and sponsors to help with this unique opportunity.

When you have the chance please tell a friend or neighbor about this exciting grassroots effort to measure precipitation in the backyards of citizens from the Atlantic to the Pacific.

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 aim is to provide the highest quality data for natural resource, education and research applications.

Please join! Recording the rain, snow, and/or hail only takes five minutes a day and is a fun way to learn about this wonderful natural resource that falls from the sky. If you are interested in becoming a volunteer, please go to https://www.cocorahs.org and on the left, click on Join CoCoRaHS. You can also learn more about the CoCoRaHS network by browsing around the different options on the left selection bar or you can click on a state on the map and see the precipitation totals.

If you have any questions, please e-mail us, give us a call at 775-674-7010, or check out http://www.cocorahs.org.