Table 3 



PORTLAND LIGHTSHIP 43°31.6'N. 70°05.5'W. Depth of water - 150 feet 



January 1959 

 Temperature °F 



Salinity °/, 



oo 



150' 



32.92 



32.80 



32.82 



Mean 



39.7 39.7 39.8 40.3 40.7 



32.98 



