55 



Monthly and Annua] Mean Surface Water Temperatures, F 



BLOCK ISLAND, S.E. LIGHT 



4P09'N 71°33'W 



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



Readings at first high water and first low water after 7 a.m. 

 Source - USCFF 



