Recent Crests
(1) 4,588.63 ft on 06/05/2019
(2) 4,581.08 ft on 05/30/2018
(3) 4,580.27 ft on 06/12/2017
(4) 4,580.22 ft on 05/30/2016
(5) 4,589.46 ft on 06/29/2015
(6) 4,580.14 ft on 06/22/2014
(7) 4,580.14 ft on 06/22/2013
(8) 4,579.81 ft on 05/26/2012
(9) 4,584.87 ft on 06/03/2011
(10) 4,582.66 ft on 05/30/2010
(11) 4,580.25 ft on 07/02/2009
(12) 4,573.08 ft on 09/30/2008
(13) 4,553.84 ft on 06/17/2007
(14) 4,561.34 ft on 06/02/2006
(15) 4,564.72 ft on 06/22/2005
(16) 4,573.55 ft on 04/30/2004
(17) 4,580.71 ft on 06/17/2003
(18) 4,580.39 ft on 05/14/2002
(19) 4,579.74 ft on 06/13/2001
(20) 4,581.54 ft on 11/23/1999
(21) 4,584.48 ft on 06/21/1999
(22) 4,584.76 ft on 06/23/1998
(23) 4,583.19 ft on 06/07/1997
(24) 4,585.35 ft on 06/04/1996
(25) 4,583.30 ft on 05/15/1995
(26) 4,580.20 ft on 06/06/1994
(27) 4,581.97 ft on 06/19/1993
(28) 4,567.73 ft on 05/04/1992
(29) 4,568.31 ft on 07/18/1991
(30) 4,543.65 ft on 06/18/1990
(31) 4,556.07 ft on 05/18/1989
(32) 4,575.65 ft on 05/13/1988
(33) 4,580.16 ft on 06/12/1987
(34) 4,579.29 ft on 07/23/1986
(35) 4,580.02 ft on 04/30/1985
(36) 4,581.35 ft on 06/14/1984
(37) 4,581.03 ft on 06/18/1983
(38) 4,581.66 ft on 07/02/1982
(39) 4,571.24 ft on 04/22/1981
(40) 4,580.02 ft on 05/17/1980
(41) 4,579.64 ft on 05/08/1979
(42) 4,585.44 ft on 05/21/1978
(43) 4,580.04 ft on 05/02/1977
(44) 4,581.27 ft on 06/20/1976
(45) 4,579.23 ft on 07/02/1975
(46) 4,578.17 ft on 05/01/1974
(47) 4,579.60 ft on 06/05/1973
(48) 4,585.06 ft on 06/22/1972
(49) 4,580.11 ft on 06/04/1971
(50) 4,580.42 ft on 06/13/1970
(51) 4,580.23 ft on 05/04/1969
(52) 4,579.88 ft on 04/30/1968
(53) 4,584.50 ft on 06/21/1967
(54) 4,580.36 ft on 10/06/1965
(55) 4,585.87 ft on 05/19/1965
(56) 4,581.30 ft on 06/15/1964
(57) 4,580.14 ft on 07/05/1963
(58) 4,532.66 ft on 09/30/1962
(59) 4,516.71 ft on 04/03/1961
(60) 4,537.36 ft on 04/25/1960
(61) 4,531.14 ft on 09/30/1959
(62) 4,521.56 ft on 08/07/1958
(63) 4,506.15 ft on 08/30/1957
(64) 4,449.84 ft on 08/28/1956

(P): Preliminary values subject to further review.