40i- 



1016 



< 



S 



1958 



1959 



I960 



1961 



1962 



a. 

 < 



<3 < 



3 ! 



5 ! 



S c 

 1963 



3 



< I 

 I 



>- I 



< I 

 5 ' 



1964 



z 

 < 



5 ( 

 1965 



C3 



3 



1966 



Figure 7. — Cumulative local precipitation and range and average salinity in Clear Lake, Tex., for 4-month 

 periods. Trend lines were plotted by using three-point moving average. 



no data ■>■ Single observation 



