Historic Crests
(1) 26.00 ft on 08/07/1906
(2) 25.50 ft on 10/04/1904
(3) 25.00 ft on 05/03/1914
(4) 24.35 ft on 05/11/1950
(5) 24.20 ft on 05/24/1908
(6) 24.00 ft on 05/05/1941
(7) 23.97 ft on 05/03/1990
(8) 22.55 ft on 05/18/1949
(9) 22.20 ft on 06/24/1948
(10) 22.00 ft on 05/31/1937
(11) 21.84 ft on 06/18/2015
(12) 21.82 ft on 05/25/2015
(13) 21.80 ft on 05/10/1943
(14) 21.46 ft on 04/28/2021
(15) 21.33 ft on 04/26/1990
(16) 21.10 ft on 05/18/1957
(17) 20.90 ft on 10/30/1941
(18) 20.88 ft on 05/29/1987
(19) 20.85 ft on 09/25/1941
(20) 20.64 ft on 07/08/2015
(21) 20.60 ft on 05/10/2015
(22) 20.32 ft on 05/10/1993
(23) 20.29 ft on 10/21/1983
(24) 20.20 ft on 10/14/1923
(25) 20.05 ft on 05/25/1957
(26) 20.00 ft on 06/10/1923
(27) 18.57 ft on 04/26/1999
(28) 18.47 ft on 05/20/2017
(29) 18.45 ft on 03/17/1998
(30) 18.24 ft on 05/08/1995

(P): Preliminary values subject to further review.