Five of these storms made landfall in Louisiana: Cristobal, Marco, Laura, Delta and Zeta.
Four storms are Greek names because the normal list of names was exhausted: Beta, Delta, Zeta and Eta.
Three made landfall in Louisiana as hurricanes, category 2 or higher: Laura, Delta and Zeta
Of them of these hurricanes made landfall a few kilometers apart near Lake Charles: Laura and Delta.
A one of these was Category 4 Hurricane Laura which ravaged southwestern Louisiana on August 27.
(Side note: Theta formed in the Atlantic Ocean on November 9, bringing the total number of storms named using the Greek alphabet to eight. And five of these Greek named storms entered the Gulf of Mexico)
The Atlantic Basin 2020 hurricane season officially ends on November 30. However, storms formed beyond that date. In 2005, Zeta formed in late December and continued into January 2006.
Follow Dan Swenson on Twitter, @nolagraphicsguy.