136 



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 Monthly and Annual Mean Surface V/ater Temperatures, F 



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SHIP ISLAND LIGHTHOUSE, MISSISSIPPI 30 13 'N. 88 58'W. 



Year Jan. Feb. Mar. Apr. May June July Au^. Sept. Oct. Nov. Dec . Ann . 



1930 48.3 53.7 54.6 66.2 74.0 76.8 81.8 80.6 78.6 66.0 56.6 48.2 65.4 



1931 46.4 53.3 52.8 61.6 59.6 80.0 82.8 79-4 79.6 71.0 64.2 57.8 65.7 

 32 53.7 57.2 51.4 63.8 71.0 81.5 - - - _ _ _ _ 



(3) (3) (3) (3) (3) (3) (2) (2) (2) (2) (2) (2) 

 Mean 49-5 54-7 52.9 63.9 68.2 79.4 82.3 80.0 79.1 68.5 60.4 53.0 66.0 



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



Source - DSBF 



