42 



Monthly and Annual Mean Surface VJater Temperatures, °F 



NANTUCKET LIGHTSHIP UO 37'N. 69 38'18"W. 



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



19li7 _..--.--- 60.3 52.9 - 



kQ - UO.7 Uo.O U2.5 U6.1 50.8 56.14 63. U 61.0 56.6 - - (50.3) 



k9 - Ul.l^ UO.2 - U6.7 60.3 67.6 68.6 65.6 61.1 - 5l.O (53.6) 



1950 _ - - U3.7 h7.2 57.0 60.8 63. U - . - - - 



1951 H3.3 I42.8 U2.8 UU.8 U7.7 52.8 61.2 65.6 65.9 59.i; 55.0 U8.0 52.U 

 52 - - - hh.h U5.5 53.2 61.I 67.8 63. 59.0 53.0 U8.0 (51.7) 



(1) (3) (3) (U) (5) (5) (5) (5) (h) (5) (3) (3) 



Mean U3.3 U.6 Ul.O 1*3.8 U6.6 5U.8 6l.li 65.8 63.9 59.3 53.6 U9.0 52.0 



Readings at 0130, 0700, 1330 and 1930, EST 

 Source - NWRC 



