U9 



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Monthly and Annual Mean Surface Water Temperatures, F 



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HALF MOON REEF LIGHT STATION, MATAGORDA BAY, TEXAS 28 32.3'N. 96 15.VI. 



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



1930 45.5 59.4 60.2 71.2 75.8 81.4 83.6 84.5 80.6 72.2 63.6 54.6 69.4 



1931 53.2 61.5 60.4 66.1 74.0 82.5 85.6 84.2 83.8 79.6 70.3 57.2 71.5 



32 59.0 63.8 59.4 71.4 77-4 83.4 85.3 85.0 81.6 72.4 60.4 52.8 71.0 



33 58.9 55.2 64.2 70.0 79.4 81.0 83.8 84.0 83.7 76.0 - 66.2 (72.3) 



34 58.8 56.8 59.9 - 74.0 80.0 83.0 83.5 82.4 _ - - (70.5) 

 1935 58.2 57.9 65.8 ------ _--_ 



(6) (6) (6) (4) (5) (5) (5) (5) (5) (4) (3) (4) 



Mean 55.6 59.1 61.6 69.7 76.1 81.7 84.3 84.2 82.4 75.0 64.8 57.7 71.0 



Oyster built reef about 3 miles SW of Palacios Point. 



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

 Source - USBF 



