Short description:
Estimated Total Annual Precipitation (CoCoRaHS, 2018WYrS) - Shows estimated total annual precipitation (1000 meter raster dataset) in Indiana for the 2018 water-year, using selected CoCoRaHS station data. For the 2018 water-year, 246 of the 557 stations reported precipitation for 301 days or more (attribute field named "DaysCovered"). Esri ArcCatalog was used to interpolate total precipitation (using "3D Analyst Tools > Raster Interpolation > Spline with Barriers," the attribute field named "PTotSum," a 1000-meter cell size, and a smoothing value of '1').

The following is excerpted from online documentation for the CoCoRaHS Network:

"CoCoRaHS (pronounced KO-ko-rozz) is an acronym for the Community Collaborative Rain, Hail and Snow Network. 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) in their local communities. By using low-cost measurement tools, stressing training and education, and utilizing an interactive website, our aim is to provide the highest quality data for natural resource, education and research applications."

"Each time a rain, hail or snow storm crosses your area, volunteers take measurements of precipitation from as many locations as possible (see equipment). These precipitation reports are then recorded on our website ( 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."

IndianaMap, IGS, Indiana, weather, climate, Community Collaborative Rain, Hail, and Snow (CoCoRaHS), weather station, rain, precipitation, hail, snow, thunder, meteorology, hydrology, climateMeteorologyAtmosphere, environment, farming

Colorado Climate Center, Colorado State University, National Weather Service (NWS),Indiana State Climate Office at Purdue University, National Oceanic and Atmospheric Administration (NOAA)
FGDC Metadata:
Download:Download a zip file that contains an ESRI Shape File and associated metadata:
Opacity: 1