Historic Crests
(1) 50.40 ft on 09/19/1945
(2) 47.20 ft on 08/27/1908
(3) 46.60 ft on 09/18/2018
(4) 45.50 ft on 01/01/1864
(5) 44.90 ft on 09/20/1928
(6) 43.00 ft on 04/12/2003
(7) 42.80 ft on 04/08/1936
(8) 42.70 ft on 10/04/1929
(9) 42.50 ft on 02/08/2020
(10) 42.44 ft on 02/27/1979
(11) 42.40 ft on 03/17/1912
(12) 42.32 ft on 04/02/1973
(13) 42.10 ft on 03/23/2003
(14) 41.75 ft on 03/03/1987
(15) 41.74 ft on 05/23/2020
(16) 41.72 ft on 03/16/1975
(17) 41.70 ft on 10/04/1989
(18) 41.44 ft on 11/15/2020
(19) 41.40 ft on 11/24/2006
(20) 41.34 ft on 03/05/1952
(21) 40.65 ft on 06/24/1972
(22) 40.39 ft on 10/18/1964
(23) 40.10 ft on 01/24/1954
(24) 39.80 ft on 03/21/1944
(25) 39.70 ft on 01/21/1892
(26) 39.63 ft on 07/25/1997
(27) 39.56 ft on 01/28/1978
(28) 39.50 ft on 01/14/1948
(29) 39.50 ft on 02/12/1921
(30) 39.41 ft on 01/08/1962
(31) 39.38 ft on 02/02/1960
(32) 39.30 ft on 07/19/1916
(33) 39.30 ft on 07/10/1896
(34) 39.20 ft on 07/23/1919
(35) 39.10 ft on 08/08/1901
(36) 39.06 ft on 10/25/1990
(37) 38.90 ft on 09/10/2004
(38) 38.87 ft on 01/12/2024
(39) 38.82 ft on 03/06/1966
(40) 38.74 ft on 01/01/2016
(41) 38.72 ft on 03/20/1998
(42) 38.62 ft on 11/14/2018
(43) 38.40 ft on 01/01/1902
(44) 38.40 ft on 01/27/2010
(45) 38.30 ft on 04/22/1918
(46) 38.30 ft on 03/05/1971
(47) 38.27 ft on 08/13/1970
(48) 38.20 ft on 03/19/1923
(49) 38.20 ft on 02/11/1946
(50) 38.19 ft on 03/15/1963
(51) 38.10 ft on 08/17/1940
(52) 38.10 ft on 02/08/1899
(53) 38.00 ft on 09/30/2004
(54) 37.93 ft on 05/29/2020
(55) 37.92 ft on 05/01/1958
(56) 37.90 ft on 04/24/1992
(57) 37.90 ft on 02/17/1922
(58) 37.80 ft on 01/21/1925
(59) 37.75 ft on 12/22/2018
(60) 37.60 ft on 10/02/1924
(61) 37.57 ft on 02/06/2010
(62) 37.48 ft on 03/26/1993
(63) 37.40 ft on 01/10/1932
(64) 37.40 ft on 03/02/1939
(65) 37.30 ft on 03/11/1875
(66) 37.30 ft on 01/11/1895
(67) 37.10 ft on 03/14/1891
(68) 37.00 ft on 09/03/1893
(69) 36.95 ft on 10/14/2018
(70) 36.92 ft on 01/12/1984
(71) 36.90 ft on 05/02/1949
(72) 36.70 ft on 02/22/1905
(73) 36.70 ft on 03/24/1903
(74) 36.70 ft on 10/11/1894
(75) 36.62 ft on 03/19/1983
(76) 36.60 ft on 01/22/1937
(77) 36.51 ft on 11/27/1957
(78) 36.23 ft on 02/23/1953
(79) 36.20 ft on 03/06/1917
(80) 36.12 ft on 02/19/1995
(81) 36.10 ft on 12/27/1914
(82) 36.04 ft on 04/01/1991
(83) 35.90 ft on 08/04/1909
(84) 35.84 ft on 03/19/1965
(85) 35.82 ft on 03/31/1994
(86) 35.44 ft on 04/01/1977
(87) 35.43 ft on 10/16/1959
(88) 35.35 ft on 12/17/2018
(89) 35.13 ft on 02/26/1961
(90) 35.10 ft on 12/05/1927
(91) 35.10 ft on 03/27/1935
(92) 35.00 ft on 04/21/1900
(93) 35.00 ft on 01/29/1943
(94) 34.80 ft on 01/09/1915
(95) 34.74 ft on 04/15/1955
(96) 34.70 ft on 06/16/1910
(97) 34.70 ft on 09/01/1906
(98) 34.52 ft on 10/04/2015
(99) 34.50 ft on 03/10/1942
(100) 34.39 ft on 03/17/1956
(101) 34.17 ft on 12/30/2018
(102) 34.10 ft on 02/08/1897
(103) 34.10 ft on 04/17/1974
(104) 33.75 ft on 12/31/2018
(105) 33.72 ft on 08/19/1985
(106) 33.70 ft on 07/26/1938
(107) 33.62 ft on 03/07/2003
(108) 33.50 ft on 03/26/1980
(109) 33.30 ft on 12/24/1911
(110) 33.12 ft on 01/12/1968
(111) 33.00 ft on 06/09/2003
(112) 32.99 ft on 01/05/1982
(113) 32.92 ft on 12/28/2023
(114) 32.90 ft on 08/23/1931
(115) 32.85 ft on 01/10/2007
(116) 32.80 ft on 10/13/2020
(117) 32.62 ft on 01/26/1999
(118) 32.62 ft on 01/26/1999
(119) 32.60 ft on 01/21/1947
(120) 32.56 ft on 01/29/1996
(121) 32.40 ft on 08/22/1898
(122) 32.30 ft on 01/29/2024
(123) 32.25 ft on 01/06/2019
(124) 32.20 ft on 03/03/2009
(125) 32.20 ft on 12/02/1934
(126) 32.14 ft on 03/30/2005
(127) 32.10 ft on 10/12/1976
(128) 32.07 ft on 01/20/2013
(129) 32.00 ft on 06/20/2003
(130) 32.00 ft on 05/08/2003
(131) 32.00 ft on 12/16/1907
(132) 31.90 ft on 12/28/2009
(133) 31.80 ft on 11/13/2009
(134) 31.80 ft on 12/10/1920
(135) 31.56 ft on 01/26/2019
(136) 31.30 ft on 08/25/1967
(137) 31.20 ft on 04/27/2018
(138) 31.17 ft on 09/05/1998
(139) 31.17 ft on 12/11/2018
(140) 30.88 ft on 02/13/2023
(141) 30.81 ft on 05/02/2020
(142) 30.70 ft on 01/29/1913
(143) 30.30 ft on 01/15/2020
(144) 30.27 ft on 11/18/2006
(145) 30.15 ft on 05/24/2003
(146) 30.10 ft on 12/23/1951
(147) 30.00 ft on 09/30/1999
(148) 30.00 ft on 03/01/2003
(149) 29.64 ft on 02/15/2020
(150) 29.42 ft on 12/15/2019
(151) 28.89 ft on 04/20/1969
(152) 28.57 ft on 03/29/2024
(153) 28.32 ft on 01/04/2022
(154) 28.24 ft on 03/14/2022
(155) 26.93 ft on 01/26/2020
(156) 25.68 ft on 02/12/1981
(157) 24.89 ft on 03/27/2020
(158) 24.36 ft on 05/01/2023
(159) 24.20 ft on 01/27/2023
(160) 24.12 ft on 03/11/2024
(161) 22.89 ft on 08/21/1986
(162) 22.74 ft on 04/14/2020
(163) 22.71 ft on 06/24/2023
(164) 22.24 ft on 12/19/2023
(165) 22.04 ft on 12/24/2022
(166) 22.01 ft on 04/07/2022
(167) 21.50 ft on 01/21/1988
(168) 21.43 ft on 03/03/2024
(169) 20.55 ft on 02/13/2018
(170) 20.52 ft on 02/09/2018
(171) 18.61 ft on 01/06/2023

(P): Preliminary values subject to further review.