Historic Crests
(1) 32.40 ft on 09/10/1884
(2) 24.80 ft on 09/01/1941
(3) 22.50 ft on 04/15/1967
(4) 22.20 ft on 06/28/1943
(5) 20.65 ft on 05/02/1954
(6) 20.17 ft on 04/14/2002
(7) 19.84 ft on 06/21/1993
(8) 19.82 ft on 05/19/2017
(9) 19.53 ft on 04/21/1996
(10) 19.30 ft on 05/31/1942
(11) 19.20 ft on 04/18/1982
(12) 19.07 ft on 09/10/1938
(13) 18.96 ft on 09/25/2010
(14) 18.28 ft on 03/18/2016
(15) 17.93 ft on 06/19/2018 (P)
(16) 16.73 ft on 04/12/2014
(17) 16.09 ft on 04/11/2011
(18) 15.59 ft on 05/22/2013
(19) 13.48 ft on 03/15/2012
(20) 10.82 ft on 05/28/2015

(P): Preliminary values subject to further review.