Historic Crests
(1) 49.58 ft on 08/01/1993
(2) 43.23 ft on 04/28/1973
(3) 42.00 ft on 04/01/1785 (P)
(4) 41.89 ft on 05/22/1995
(5) 41.32 ft on 06/27/1844
(6) 40.52 ft on 06/04/2013
(7) 40.30 ft on 07/02/1947
(8) 40.28 ft on 07/21/1951
(9) 39.27 ft on 12/07/1982
(10) 39.20 ft on 05/04/1983
(11) 39.14 ft on 04/30/1944
(12) 39.13 ft on 10/09/1986
(13) 38.94 ft on 05/24/1943
(14) 38.91 ft on 10/01/1993
(15) 38.67 ft on 07/01/2008
(16) 38.00 ft on 06/10/1903
(17) 37.79 ft on 04/14/1979
(18) 37.34 ft on 05/17/2002
(19) 36.72 ft on 09/18/2008
(20) 36.61 ft on 04/15/1994
(21) 36.60 ft on 04/17/1993
(22) 36.60 ft on 06/10/1851
(23) 36.50 ft on 04/10/1983
(24) 36.10 ft on 04/26/1927
(25) 36.00 ft on 05/19/1892
(26) 35.45 ft on 04/25/2013
(27) 35.35 ft on 06/02/1996
(28) 35.30 ft on 06/13/1945
(29) 35.30 ft on 04/21/1945
(30) 35.25 ft on 07/16/1909
(31) 35.18 ft on 06/28/2010
(32) 34.95 ft on 06/20/1908
(33) 34.93 ft on 05/01/2011
(34) 34.90 ft on 06/26/1943
(35) 34.83 ft on 05/20/2010
(36) 34.80 ft on 06/25/1883
(37) 34.79 ft on 06/10/2001
(38) 34.63 ft on 03/27/1948
(39) 34.60 ft on 04/28/1929
(40) 34.48 ft on 06/30/1942
(41) 34.40 ft on 02/28/1985
(42) 34.30 ft on 04/28/1947
(43) 34.02 ft on 04/24/1984
(44) 33.95 ft on 04/20/1922
(45) 33.89 ft on 07/02/2011
(46) 33.83 ft on 04/29/1952
(47) 33.80 ft on 05/16/1996
(48) 33.78 ft on 04/10/1960
(49) 33.65 ft on 05/05/1881
(50) 33.60 ft on 04/29/1904
(51) 33.52 ft on 06/07/1935
(52) 33.50 ft on 03/08/1985
(53) 33.36 ft on 04/17/1998
(54) 33.24 ft on 05/21/2009
(55) 33.20 ft on 05/21/1929
(56) 33.20 ft on 05/11/1961
(57) 33.18 ft on 05/18/1990
(58) 33.16 ft on 05/30/2011
(59) 33.09 ft on 11/22/1985
(60) 33.03 ft on 03/29/2010
(61) 33.00 ft on 06/08/1929
(62) 33.00 ft on 05/24/1974
(63) 32.90 ft on 06/14/1917
(64) 32.77 ft on 11/02/2009
(65) 32.62 ft on 05/08/1999
(66) 32.40 ft on 04/03/1945
(67) 32.39 ft on 07/05/1882
(68) 32.30 ft on 10/16/1969
(69) 32.29 ft on 07/25/2010
(70) 32.28 ft on 03/01/1997
(71) 32.22 ft on 05/04/2009
(72) 32.10 ft on 05/22/1945
(73) 32.00 ft on 05/10/1876
(74) 31.95 ft on 04/06/1998
(75) 31.70 ft on 06/05/1982
(76) 31.60 ft on 05/03/1893
(77) 31.60 ft on 06/24/1915
(78) 31.53 ft on 04/13/2008
(79) 31.48 ft on 05/07/1984
(80) 31.45 ft on 04/26/1862
(81) 31.40 ft on 01/31/1916
(82) 31.30 ft on 06/04/1915
(83) 31.30 ft on 07/23/1915
(84) 31.20 ft on 04/16/1944
(85) 31.14 ft on 06/02/1973
(86) 31.13 ft on 06/03/1974
(87) 31.10 ft on 07/09/1892
(88) 31.10 ft on 06/25/1990
(89) 31.00 ft on 05/03/1994
(90) 31.00 ft on 04/22/1969
(91) 30.99 ft on 07/11/2014
(92) 30.95 ft on 04/28/2008
(93) 30.90 ft on 05/02/1897
(94) 30.89 ft on 05/19/1970
(95) 30.80 ft on 04/05/1912
(96) 30.80 ft on 05/08/1951
(97) 30.80 ft on 04/18/1947
(98) 30.80 ft on 06/09/1929
(99) 30.80 ft on 04/20/1997
(100) 30.79 ft on 03/21/2008
(101) 30.74 ft on 05/14/2008
(102) 30.73 ft on 08/02/2008
(103) 30.70 ft on 05/02/1969
(104) 30.65 ft on 06/14/1974
(105) 30.62 ft on 05/21/2001
(106) 30.60 ft on 05/07/1979
(107) 30.60 ft on 06/28/1984
(108) 30.60 ft on 06/28/1985
(109) 30.60 ft on 05/30/1990
(110) 30.53 ft on 04/12/1984
(111) 30.50 ft on 04/12/1929
(112) 30.50 ft on 06/15/1984
(113) 30.49 ft on 07/01/1967
(114) 30.44 ft on 04/29/2010
(115) 30.44 ft on 09/28/1965
(116) 30.40 ft on 05/24/1986
(117) 30.40 ft on 08/22/1915
(118) 30.38 ft on 03/27/1978
(119) 30.30 ft on 06/24/1998
(120) 30.30 ft on 04/30/1912
(121) 30.24 ft on 04/05/2010
(122) 30.20 ft on 04/08/1993
(123) 30.20 ft on 09/21/1905
(124) 30.18 ft on 03/25/1962
(125) 30.13 ft on 04/20/1939
(126) 30.12 ft on 03/18/2010
(127) 30.10 ft on 08/05/1915
(128) 30.10 ft on 07/07/1876
(129) 30.10 ft on 04/24/1979
(130) 30.00 ft on 05/31/1916
(131) 30.00 ft on 05/21/1981
(132) 29.95 ft on 04/27/1975
(133) 29.80 ft on 08/03/1875
(134) 29.31 ft on 07/24/1869
(135) 29.30 ft on 05/11/2007
(136) 28.80 ft on 01/07/2005
(137) 28.19 ft on 05/29/2004
(138) 27.24 ft on 03/16/2009
(139) 25.43 ft on 06/29/2000
(140) 25.00 ft on 05/12/2003
(141) 19.02 ft on 05/05/2006

(P): Preliminary values subject to further review.