136 



o 

 Monthly and Annual Mean Surface Water Temperatures, F 



o o 



SHIP ISUND LIGHTHOUSE, UISSISSIPPI 30]>'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 



