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 Monthly and Annual Mean Surface Water Temperatures, F 



1880 - May 1884, incl., 1893-1897, incl, one reading per dajf at no specified time. 

 Nov. 1884 - 1892, incl., 1898-1919, incl., readings at first high water and first 

 low water after 7 a.m. 



Source - USCFF 



