Every day, thousands of volunteers faithfully wander out into their backyards to check their CoCoRaHS rain gauges. The beauty of these rain gauges is their simplicity. The CoCoRaHS gauges have no moving parts, they are affordable, more reliable/accurate than automated rain gauges, and they let you know the exact amount of rain/snow that your yard received. CoCoRaHS rain gauge data is also incredibly useful for the verification of weather forecasts.

My CoCoRaHS gauge on my deck in the Oakland Hills, California.

Being a part of this citizen science network is really gratifying. With CoCoRaHS, you’re helping to create a first-class weather dataset that can be used for both weather and climate…

Mike Dvorak

Weather data engineer

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