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Precipatation and ETo for Manteca, CA <br /> ** Estimated <br /> *Ave. Etc *Ave. Precip. Deep Perc. <br /> Month (in/mo) (in/mo) (in/mo) <br /> Jan 0.97 2.84 1.87 <br /> Feb 1.82 2.46 0.64 <br /> Mar 3.59 1.63 <br /> Apr 5.05 0.87 <br /> May 6.69 0.69 <br /> Jun 7.53 0.13 <br /> Jul 8.04 0.02 <br /> Aug 7.11 0.14 <br /> Sep 5.26 0.15 <br /> Oct 3.42 0.62 <br /> Nov 1.66 1.43 <br /> Dec 0.97 2.00 1.03 <br /> Sum: 52.11 inlyr 12.98 in/yr 3.54 in/yr <br /> * Source: CIMS, California Department of Water Resources(Jan 1988 to Dec 2004) <br /> (www.cimis.water.ca.gov) <br /> ** Assumption: If monthly precipitation exceeds potential ET then <br /> the difference is potential deep percolation. <br /> 1 rerracon <br />