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Precipitation and ETo for South Stockton, CA <br /> *** Estimated <br /> *Ave. Eto **Ave. Precip. Deep Perc. <br /> Month (in/mo) (in/mo) (in/mo) <br /> Jan 1.24 2.85 1.61 <br /> Feb 1.96 2.27 0.31 <br /> Mar 3.41 2.04 <br /> Apr 5.10 1.12 <br /> May 6.82 0.41 <br /> Jun 7.80 0.08 <br /> Jul 8.06 0.03 <br /> Aug 7.13 0.04 <br /> Sep 5.40 0.27 <br /> Oct 3.72 0.72 <br /> Nov 1.80 1.80 <br /> Dec 0.93 2.31 1.38 <br /> Sum. 53.37 in/yr 13.94 in/yr 3.3 in/yr <br /> * Source: California Irrigation Management Information Systems(Zone 12) <br /> (www.cimis water ca.go v) <br /> ** Source: Western Regional Climate Center(Station 048558)Sept 1948 to Sept 2004 <br /> (httpy/www.wrcc.dri.edu/) <br /> *** Assumption: If monthlyprecipitationexceeds potential ETthen <br /> the difference is potential deep percolation. <br /> NEIL O. ANDERSON <br /> A N D A S S O C I A T E 5 <br /> r <br /> Plate 7 <br />