The zoo has been closed only five times in its history: On September 14, 2008, after damage from a weekend rainstorm; on February 2, 2011, after a major blizzard; on April 18–19, 2013, after flooding from a severe rainstorm; January 2019 due to below-freezing temperatures; and from March 19 to April 30, 2020, due to the 2019-20 coronavirus pandemic.