54 U. S. COAST AND GEODETIC SURVEY 



Table 6, — Monthly extreme low water below sea-level datum, Boston Navy Yard 



1847: 



June 13 



July 29 



Aug. 28 



Sept. 24, 27. 



Oct. 23 



Nov. 22 



Dec. 21 



Lowest.. 

 Average. 



Jan. 9, 20... 



Feb. 11 



Mar. 6 



Apr. 4 



May 5 



Junes, 4 



July 2 



Aug. 16 



Sept. 14, 15- 



Oct. 14 



Nov. 11 



Dec. 9, 11... 



Lowest.. 

 Average - 



Height 



Fea ■ 

 6.6 

 7.0 

 7.4 

 6.6 

 7.5 

 7.5 

 6.7 



7.5 

 7.04 



6.2 

 7.9 

 7.8 

 7.1 

 6.6 

 6.6 

 6.6 

 6.4 

 7.0 

 7.5 

 7.3 



Height 



1862: 



Jan. 2 



Feb. 16, 26. 

 Mar. 19—. 

 Apr. 16..-. 

 May 16..-. 



June 12 



July 12 



Aug. 11.-. 

 Sept. 26—. 



Oct. 25 



Nov. 23—. 

 Dec. 20 



Lowest.. 

 Average. 



1863: 

 Jan. 19- 

 Feb. 17- 

 Mar. 20. 

 Apr. O.- 

 May 6-. 

 June 4.. 

 July 31.- 

 Aug. 1.. 

 Sept. 28- 

 Oct. 14.. 

 Nov. 11. 

 Dec. 15.. 



Lowest.. 

 Average- 



1864: 

 Jan. 9... 

 Feb. 9-- 

 Mar. 9.. 

 Apr. 7.- 

 May 6— 

 June 22. 

 July 19.. 

 Aug. 20- 

 Sept. 17. 

 Oct. 17- 

 Nov. 14. 

 Dec. 12. 



Lowest.. 

 Average 



1865: 

 Jan. 11.. 

 Feb. 27.. 

 Mar. 28. 

 Apr. 26.. 

 May 24. 

 June 24. 

 July 10-. 

 Aug. 8.- 

 Sept. 6„ 

 Oct. 7— 

 Nov. 3... 

 Decs... 



Lowest. 



Jan. 1... 

 Feb. 16. 

 Mar. 19. 

 Apr. 18. 

 May 16. 

 June 13- 

 July 12- 

 Aug. 11- 



Height 



Feet 

 7.7 

 6.7 

 7.1 

 7.8 

 7.4 

 6.9 

 6.8 

 6.4 

 6.6 

 7.3 

 8.1 

 7.7 



7.7 

 7.6 

 7.2 

 6.7 

 6.7 

 7.0 

 7.4 

 7.3 

 6.5 

 6.0 

 6.6 

 7.4 



7.7 

 7.01 



Lowest 



Average 



7.3 

 8.1 

 7.6 

 7.0 

 6.7 

 7.0 

 7.0 

 7.5 

 7.3 

 7.3 

 6.6 

 7.8 



8.1 

 7.26 



6.7 

 7.7 

 7.5 

 7.1 

 6.6 

 6.7 

 6.6 

 7.0 

 7.1 

 7.3 

 7.8 

 7.6 



7.8 

 7.13 



7.2 

 7.8 

 7.6 

 6.8 

 7.8 

 7.1 

 6.5 

 6.7 

 7.0 



7.8 

 7.17 



