17 



o 

 Monthly and Annual Uean Surface Water Temperatures, F 



MOUNT DESEET ROCK LIGHTHOUSE 



Year Jan. Feb. Mar. Apr. May June 



1952 ____-- 



53 39.4 39.1 39.1 43.8 46.6 52.0 



5;^ 45.8 45.9 40.9 42.5 44.6 46.5 



1955 44.0 40.6 40.6 41.2 42.4 45.2 



(3) (3) (3) (3) (3) (3) 

 Mean 43.1 41.9 40.2 42.5 44.5 47.9 



Readings at 8 am and 6 pm. 

 Source - USFWS 



