105 



Monthly and Annual Mean Surface VJater Tenperatures, F 

 RATTLESNAKE SHOAL LIGHTSHIP 32°liU'00" N. 79°li3'lj.U"W. 



Year Jan. Feb. Mar. Apr. May June July Aug. Sept. O ct. Nov. Dec. Ann. 



1878 



79 



1880 



1881 

 82 

 83 

 8U 



1885 



1886 

 87 

 88 

 89 



1890 



1891 

 92 

 93 

 9h 



U8.7 

 59.5 



U8.7 

 55.0 

 50.1 

 50.0 

 52.7 



U6.5 

 U8.3 

 53.2 

 53.8 

 60. [i 



51.5 

 50.8 

 i;5.6 

 53.1 



51.2 

 57.3 



51.0 

 57.2 

 5I4.8 

 57.3 

 51.1 



li9.2 

 5U.6 

 5U.1 

 50.3 

 60.0 



56.8 

 52.U 

 50.7 

 53.2 



55.8 

 63.0 



55.1 

 61.2 

 55.9 

 58.5 

 53.7 



52.9 

 56.6 

 56.8 

 5U.3 

 57.8 



57.0 

 51.5 

 5h.6 

 57.6 



63. Ii 

 66.0 



59.9 

 66.9 

 63.2 

 6U.5 

 61. li 



62.3 

 62.2 

 65.1 

 62.2 

 65.3 



6U.9 

 62.1 

 62.6 

 63.2 



71.7 

 7I1.I 



72.1 

 73.1; 

 72.9 

 71.8 

 73. Ii 



77.9 

 79.3 



72.1 80.2 



73.2 79.0 

 71.1 79.0 

 73.6 76.6 

 70.5 78.1i 



78.6 

 78.8 

 78.7 

 77.8 

 81.3 



71.7 79.9 

 71.2 78.0 

 70.0 77.3 

 71. 9-' - 



82.9 

 81i.0 



811.2 

 81.8 

 83.2 

 81.6 

 81.U 



81.2 

 80.0 

 80,7 

 82.5 



81.2 

 80.7 

 80.1j 



81.6 

 83.8 



82.8 

 82.6 

 83.6 

 81.3 

 81.8 



80.2 

 82.7 

 83.5 

 79.5 

 82.U 



82.U 

 81.3 



76.3 

 81.1 



82.7 



80.9 

 77.6 

 80.2 

 78.9 



79.6 

 76.8 

 79.8 

 79.0 

 80.2 



79.6 

 77.6 

 78. U 



72. U 63.1 5U.i4 - 



7U.3 63.3 59.3 67.2 



71.9 61.7 53.8 69.6 



76.2 67.3 57.5 68.] 



73.7 62.6 52.1 68.8 



73. U 63.9 57.6 67.8 



76.0 65.0 57.6 68.5 



70.6 63.1 53.6 66.U 



72.6 

 71.0 

 69.5 

 70.0 

 73.0 



69.U 

 71.0 

 69. U 



63.5 

 61.1 

 63.1 

 6U.6 



65.5 



60.1 



52.8 

 5U.2 

 53.1 



59.1' 

 56.2 



66.7 



67.5 

 67.0 

 69.8 



59, 



55.2 67.5 

 55.5 - 

 7 5U.5 - 



(U) (16) (16) 

 Mean 52.6 53.8 56.6 



(16) (16) (15) (Hi) (Hi) (15) (16) (15) (16) 

 63. U 72.2 78.7 81.8 82.1 79.2 72.2 63.2 55. U 



67.6 



*Moved to 32 ii2.1'N 79 I|6.1'V; as Charleston Bar Lightship 



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

 Source - USGFF 



