U5 



o 



Monthly and Annual Mean Surface Water Tonperatures, F 



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HEALD BANK LIGHTSHIP 29 08'N. 94 lO'W. 



Year Jan. Feb. Mar. Apr. Usj' June July Aug. Sept. Oct. Nov. D ec. Ann . 



1930 66.4 67.7 67.2 74.4 78.8 84.2 - - - - 67.7 60.0 - 



1931 55.4 - 55.9 60.8 71.0 80.5 - - - _ _ _ _ 



34- - - - -- - - - - 75. 9 61.2- 



1935 61.4 60.0 63.3 71.6 74.4- - - - -_-_ 



Readings at 8 a.m. and 6 p.m. 

 Source - DSBF 



