Daily Virginia Precipitation Plot
Daily North Carolina Precipitation Plot
Daily Maryland Precipitation Plot
What is CoCoRaHS?
CoCoRaHS stands for the Community Collaborative Rain, Hail & Snow network. It is a unique, non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, snow and hail). The network originated with the Colorado Climate Center at Colorado State University in 1998 thanks in part to a devastating flood that occurred in the previous year. Since then, the network has expanded rapidly with over 6,500+ observers in 26 states.
How does it work ?
Each time a rain, or snow storm crosses your area, and every time hail is reported, volunteers take measurements of precipitation from as many locations as possible. These precipitation reports are then recorded on the CoCoRaHS web site, www.cocorahs.org. The data are then displayed and organized for many of our end users to analyze and apply to daily situations ranging from water resource analysis and severe storm warnings to neighbors comparing how much rain fell in their backyards.
CoCoRaHS has several goals. 1) provide accurate high-quality precipitation data for our many end users on a timely basis; 2) increasing the density of precipitation data available throughout the country by encouraging volunteer weather observing; 3) encouraging citizens to have fun participating in meteorological science and heightening their awareness about weather; 4) providing enrichment activities in water and weather resources for teachers, educators and the community at large to name a few..