How to sum a raster within polygon boundaries?

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07-15-2010 10:08 AM
PageWeil
New Contributor
I am pretty new to Spatial Analyst so I don't know the name of the function I am looking for.  I have a set of basin boundaries and a raster of precipitation data.  I want to sum the values of the raster set that fall within the boundaries of each basin and assign those values as attributes to the basin shapefile.

How do I do this?
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2 Replies
JeffreyEvans
Occasional Contributor III
Spatial Analyst > Zonal Statistics
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PageWeil
New Contributor
Thank you, this helps.
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