PRISM Precipitation Maps

The National Drought Atlas project became a supporter of Christopher Daly, Assistant Professor, Oregon State University and George Taylor, State Climatologist at the Oregon Climate Service, just as they were finishing their first PRISM map.  That contour map of annual precipitation throughout the contiguous 48 states was the first since the early 1960's.

The PRISM project has progressed considerably since then.  They now have maps for 48 states individually.  You can order high resolution prints or download lower resolution gif's for each state by clicking on the state name.

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Precipitation

Streamflow

revised 1 Aug 2006

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Precipitation

Streamflow