68 



Monthly and annual Mean Surface Water Temperatures, °F 



FIVa FATHOM BANK LIGHTrHIP 38°47<N. 74°34''.V. 



Year Jan. Feb. Mar. Apr. May June July Auf. . Sept. Oct. Nov. Uec. ■\nn. 



1925 ------ 72.2 72.2 71.1 61.2 51.8 46.O - 



1926 38.1 35.5 36.2 W.9 51.3 60. /♦ 68.9 73.7 69.2 62.9 55.2 45.1 53.1 



27 37.6 37.9 39.8 43-3 - 60.2 67.5 70.7 69. 64. 55.5 45.8 (53.7) 



28 42.7 39.7 39.8 45-4 51.6 62.3 69.4 73-5 70.6 62.9 55.8 48.0 55.1 



29 43.6 37.8 - 46.3 53.8 64.2 69.2 72.4 69.6 - 55.8 47.3 (55.2) 



1930 42.5 39.3 41.4 45.9 55.8 64.4 72.1 71.8 71.8 63.8 55.0 47.0 55.9 



1931 40.8 38.8 38.9 44.6 52.5 63.0 70.7 73.5 71.4 64.O 56.5 52.1 55.6 



32 47.0 44.6 40.8 45-5 - 64.4 70.9 73.4 69.3 64.3 56.5 48.2 (56.5) 



33 45.3 a. 8 40.7 45.2 56.6 65.7 69.8 74.2 72.9 64.9 53.9 45.9 56.4 



34 42.3 35.0 35.0 40.9 - 64.2 73.7 71.1 70.6 63.2 54.6 47.6 (54.3) 



1935 41.0 35.6 39.3 43.4 51.6 63.7 71.0 73.6 69.6 60.1 55.6 43.5 54.0 



1936 35.3 - 38.3 43.9 56.3 65.3 71.8 73.8 - 64.8 56.5 47.0 55.2 



37 44.4 40.5 39.0 43.0 54.2 63.6 72.0 70.6 67.0 59.1 53.0 45.7 54.3 



38 41.3 40.4 40.8 44.7 53.4 61.5 69.4 71.7 70.1 60.6 56.5 47.9 54.8 



39 42.1 39.2 39.8 44.1 54.2 65.5 67.5 76.1 70.1 65.3 55.0 47.0 55.5 

 1940 38.5 36.1 37.5 41.6 51.6 63.3 - - - _ - _ - 



(15) (14) (14) (15) (12) (15) (15) (15) (14) (14) (15) (15) 



Mean a.5 38.7 39-1 43.9 53.6 63.4 70.4 72.5 70.2 62.9 55.1 46.9 54.9 



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

 Source - DSBF 



