83 



o 



Monthly and Annual Mean Surface Water Temperatures, F 



POINT LOOKOUT, MARYLAND 38°02.3'N. 76 19.3<W. 



1391 35.6 35.5 37.0 



Mean 35.6 36. U 37. U hh.9 60. 1 70.2 78. U 77.8 72.8 61. 6 51.7 hO.3 55.6 



Potomac River mouth. 



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

 Source - USCFF 



