107 



Monthly and Annual liean Surface Water Temperatures, °F 

 CHARLESTON BAR LIGHTSHIP, S.C. 32O41.0'N 79°43.5'W 



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



1905 - - 52.4 65.6 73.6 79.2 83.0 82.0 81.0 75.0 63.0 54.4 (67.7) 



1906 53.7 50.7 56.0 62.5 70.5 79.0 81.0 81.2 79.4 71.6 62.2 56.8 67.0 



07 53.9 51.6 56.9 56.0 68.9 75.9 80.3 80.6 79.4 70.5 60.9 54.3 65.8 



08 - 49.5 55.6 64.7 71.9 - - - 77.O 69.0 62.7 58.6 (66.7) 



09 54.8 53.8 57.2 63.1 71.0 78.6 80.2 81.4 77.5 69.9 65.1 55.0 67.3 



1910 47.6 48.0 56,3 64.0 69.1 76,7 - 79.3 78.8 75.6 60.3 50.6 (65.6) 



1911 50.5 54.1 55.4 - 70.1 79.4 82.1 79.8 



(5) (6) (7) (6) (7) (6) (5) (6) (6) (6) (6) (6) 



Mean 52.1 51-3 55.7 62.6 70.7 78.1 81.3 80.7 78.8 71.9 62.4 55.0 66.7 



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

 Source - USBF 



