153 



o 

 Monthly and annual Mean Surface Water Temperatures, F 



o o 



BRAZOS SANTIAGO LIGHT STATION, PORT ISABEL, TEXAS 26 04.4'N.. 97 lO'W. 



Year Jan. Feb. Mar. -^pr. May June July Aur. Sept. Oct. Nov. Dec . Ann 



On southern tip of Padres Island - the Port Isabel-Brownsville ship channel pjasses 

 east to west about 5100 feet south of the station. 



Readings at 8 a.m. and 6 p.m. 

 Source - USBF 



INT.-DUP. SEC. WASH., D.C. 16813 



