1866 season

Atlantic (7)

• Unnamed Hurricane, AL01 1866Hurricane Category 2 · 105 mph · 1 landfall · Jul 11–Jul 16
• Unnamed Hurricane, AL02 1866Hurricane Category 2 · 105 mph · Aug 13–Aug 18
• Unnamed Hurricane, AL03 1866Hurricane Category 1 · 80 mph · Sep 4–Sep 7
• Unnamed Hurricane, AL04 1866Hurricane Category 1 · 80 mph · Sep 18–Sep 18
• Unnamed Hurricane, AL05 1866Hurricane Category 2 · 105 mph · Sep 22–Sep 24
• Unnamed Hurricane, AL06 1866Hurricane Category 4 · 140 mph · Sep 24–Oct 5
• Unnamed Tropical Storm, AL07 1866Tropical Storm · 70 mph · Oct 29–Oct 30