The Community Collaborative Rain, Hail and Snow Network is a non-profit, community-based group of volunteers who measure and report precipitation.

United States
A dry day is still a reportable day! An important reminder: 0.00" is a report. When you check your gauge and report 0.00", you're telling us something important: you checked, and there was no measurable precipitation. That's different from having no report at all. 1/2
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So whether October 1 brings rain, snow, or blue skies, make your observation and submit your report. Every report moves us one step closer to a new CoCoRaHS daily record! 2/2
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On October 1, we're launching The Grand Daily Reporting Challenge. How many precipitation reports CoCoRaHS observers can send in on a single day? Help set a new daily record! Whether your gauge catches a downpour, a few drops, some snow, or 0.00", your report counts.
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U.S. Drought Monitor September 10, 2026 For the 50 states and Puerto Rico, the U.S. Drought Monitor shows 49.12% in moderate drought or worse, compared to 49.51% last week. #DroughtMonitor #Drought #Drought2026
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CoCoRaHS retweeted
Here's images of the rainfall totals we received over the past 24 hours. The first is a smoothed graphic from reports received from various sources. The next two are actual reports received via the @CoCoRaHS program. Don't see your area? Join CoCoRaHS and report! #mnwx #wiwx
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CoCoRaHS retweeted
This Labor Day Weekend, add photos of your surroundings to the Visual Drought Atlas! Your contributions provide a record of dry, wet and normal conditions across the U.S. 📷 Share your photos: go.unl.edu/visualdroughtatla… @CoCoRaHS
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Big Rain Bullseye - Southeast and East-Central Texas Tropical Depression Edouard produced heavy rain and gusty winds spreading well inland into Texas. The highest amount reported by CoCoRaHS observes so far is 9.00 inches near Woodville, TX in Tyler County. #Texas #Edouard 1/2
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Radar estimates indicate more than 17 inches of rain fell south and and east. Edouard is expected to move slowly north and west today bringing another several inches of rain to southeast Texas. 2/2
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CoCoRaHS retweeted
This might be the most insane footage of anything I've ever seen in my life
Nikhil saini
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This morning's highest rain totals are found in central Illinois, where CoCoRaHS observers reported more than seven inches of rain in a wide band of four to six inches of rain. The band extended from the Mississippi River on the west well into Indiana. #CoCoRaHS #flooding
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The precipitation impacts of the Central Plains upper ridge as visualized by CoCoRaHS daily maps from August 8-13. #CoCoRaHS
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2025 CoCoRaHS Campaign update and Flakes - mailchi.mp/cocorahs/2025-coc…
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The Catch - Happy Water Year 2026! - mailchi.mp/cocorahs/newslett…
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Big news! Photo Upload is Here! - mailchi.mp/cocorahs/newslett…
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The Importance of CoCoRaHS - mailchi.mp/cocorahs/newslett…
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FINAL TWO DAYS - 2024 CoCoRaHS Year-End Fundraiser! THIS IS IT! Hooray! - mailchi.mp/cocorahs/2023-coc…
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2024 CoCoRaHS Year-End Fundraiser - Once again this January a "SUPER MATCH" OPPORTUNITY as we near the finish-line! - mailchi.mp/cocorahs/2023-coc…
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