63 



o 



Monthly and Annual Mean Surface Water Temperatures, F 



1956 38.3 38.3 38.6 Ul.9 5o.O 62.8 70.7 72.5 - 



Mean hl.8 hO.O hO.7 h5.6 53.8 63.7 71.h 73.2 70.1 63.2 55.7 h7.0 55.5 



Readings at 0130, 1730, 1330 and 1930 EST. 

 Source - Nmc 



