Seasons ending with 5...

[MiamiensisWx]

...have been uniquely notorious. Look at the history for these Atlantic seasons.

1915 - Two Category 4 hurricanes strike Galveston and New Orleans
1935 - High ratio of intense hurricanes vs. total storms; Labor Day Hurricane (160 kts/892 mb) strikes FL Keys, while a 115 kt hurricane affects Cuba and the Bahamas. The unusual Yankee Hurricane (Category 2) strikes the Miami, FL area from the northeast in November
1945 - Intense hurricane (Cat 3/4) strikes Key Largo and Homestead, FL with 150 mph gusts, while another hurricane strikes Texas
1955 - Multi-year Nina season; Mexico is severely impacted via multiple tropical cyclones, thus causing more than 1,000 deaths and severe flooding in addition to previous precipitation. Janet (175 mph/914 mb), Hilda (Cat 3/952 mb), and Gladys strike Mexico, while Connie, Diane, and Ione influence severe flooding in the eastern United States
1965 - Betsy (Category 3) affects the Bahamas, south FL, and Louisiana; it becomes the first TC to inflict more than $1,000,000,000 in damages per USD
1985 - Elena (Category 3) teases NW FL and strikes the Gulf coast; Gloria affects the Northeast; and the rare Kate (Category 2) strikes Apalachicola and Tallahassee in November
1995 - Exceptionally active season with 19 NS; the Caribbean is severely affected by Roxanne, Luis, and Marilyn. Erin (Cat 1) and Opal (Cat 3) affect the United States
2005 - 'Nough said

Most of these years were above average; 1925 was the exception. Obviously, there is no correlation, but the pattern is a unique coincidence. 2015 should be watched.

[Ptarmigan]

I was thinking of that too.