O) 



(t io.o- 



YEAR MEAN, 'C 



15.7 

 14.2 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 

 MONTH 



Figure 36. Comparison of mean surface water temperatures 



0.01 0.10 1.00 



10.00 25.00 50.00 75.00 90.00 99.00 99.90 99.99 



PERCENT GREATER THAN 



Figure 37. Distribution of surface water temperatures, 

 1980-1985 



60 



