Historic Crests
(1) 18.80 ft on 11/01/1877
(2) 18.80 ft on 09/01/1870
(3) 17.20 ft on 10/15/1942
(4) 16.60 ft on 05/01/1924
(5) 15.57 ft on 09/06/1996
(6) 15.47 ft on 11/04/1985
(7) 15.25 ft on 06/21/1972
(8) 14.41 ft on 09/19/2003
(9) 13.47 ft on 09/06/1979
(10) 13.24 ft on 10/05/1972
(11) 13.07 ft on 03/18/1936
(12) 13.00 ft on 04/26/1937
(13) 12.91 ft on 08/16/1940
(14) 12.80 ft on 09/18/1945
(15) 12.72 ft on 08/20/1969
(16) 12.32 ft on 09/17/2018
(17) 12.26 ft on 09/28/2004
(18) 12.20 ft on 03/19/1975
(19) 12.15 ft on 04/17/2011
(20) 11.93 ft on 05/30/1971
(21) 11.90 ft on 01/25/2010
(22) 11.90 ft on 09/20/1928
(23) 11.84 ft on 11/29/2005
(24) 11.80 ft on 04/22/1992
(25) 11.59 ft on 02/17/1998
(26) 11.50 ft on 10/17/1932
(27) 11.44 ft on 03/19/1983
(28) 11.33 ft on 09/19/1944
(29) 11.30 ft on 12/01/1934
(30) 11.08 ft on 04/17/1987
(31) 11.06 ft on 06/18/1949
(32) 10.67 ft on 03/04/1993
(33) 10.64 ft on 12/04/1950
(34) 10.62 ft on 10/09/1976
(35) 10.60 ft on 02/14/1984
(36) 10.38 ft on 01/26/1978
(37) 10.21 ft on 05/16/1942
(38) 10.00 ft on 11/16/1926
(39) 10.00 ft on 05/03/1929
(40) 10.00 ft on 10/22/1929
(41) 9.77 ft on 06/28/1995
(42) 9.73 ft on 10/07/2006
(43) 8.52 ft on 09/10/1950
(44) 8.52 ft on 02/14/1948
(45) 8.50 ft on 09/16/1934
(46) 8.45 ft on 04/15/1980
(47) 8.20 ft on 11/13/1937
(48) 8.19 ft on 10/23/1990
(49) 8.00 ft on 12/21/1973

(P): Preliminary values subject to further review.