a 



Monthly and Innual Mean Surface Water Tempera tues, F 



NANTUCKET SHOALS LIGHTSHIP AO 371 jj. 69°37to6«ff. 



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



1923 -- - 50.5 a.B - 



2J, a. 5 38.3 38.1 -iO.3 43.3 A9.S 55.A 59.6 58.5 56.6 51./^ U.2 A8.1 



1925 iiO.5 39.4 39.2 42.8 46. 6 51.5 - - 60.3 53.8 50.9 U.4 (49.2) 



1926 - 35.7 35.3 37.6 - - - - 59.1 54.8 51.9 U.3 (48.0) 



27 40.4 37.3 38,6 39.7 42.8 47.7 57.1 58.7 56.4 54.9 51.6 46.4 47.6 



28 39.6 36.5 35.5 37.8 42.7 49.1 57.3 61.5 57.6 54.9 49.8 45.0 47.3 



29 39.5 38.5 37.3 38.9 43.3 52.2 - 58.5 59.2 53.4 49.0 43.8 (47.6) 



1930 39.5 36.8 35.9 38.8 43.8 53.3 58.8 61.2 62.6 53.9 51.3 46.0 48.5 



1931 42.0 40.0 41.5 43.6 46.1 52.7 60. 64.2 60.7 56.4 53.7 47.6 50.7 



32 43.8 40.2 38.6 41.0 - 53.9 59.8 68.1 63.8 58.5 52.8 47.6 (51.0) 



33 - - - - 47.3 54.2 56.6 61.3 62.7 57.7 51.1 43.6 (49.4) 



34 39.7 34.4 35.7 39.8 - 53.4 59.7 63.1 67.1 56.8 52.1 46.2 (49.4) 



1935 40.0 38.4 38.4 40.6 44.6 52.2 58.6 63.5 61.7 55.7 52.6 44.9 49.3 



1936 39.9 36.4 39.2 42.3 48.0 52.8 57.2 61.7 59.0 56.5 51.4 46.5 49.2 



37 45.0 41.9 39.0 40.3 45.7 50.6 57.7 68.6 64.2 57.5 54.2 45.9 50.9 



38 42.4 41.0 39.4 42.4 44.1 53.4 60,8 65.7 63.1 56.7 55.6 48.7 51.1 



39 43.5 42.6 41.4 42.5 46.2 51.5 60.5 66.0 61.2 56.2 51.2 45.1 50.6 



1940 39.1 37.9 - 37.1 43.2 48.9 54.5 62.1 58.6 55.0 50.7 45.4 47.5 



1941 40.8 36.8 36.4 39.7 44.6 50.4 56.5 60.I 59.1 53.5 51.5 47.1 48.0 



Mean 41. 1 38.4 38.0 40.3 44.6 51.6 57.7 62.7 60.3 55.7 51.8 45.8 49.0 



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

 Source - USBF 



