1866 Hurricane Archive
| Storm | Dates | Max Winds | Min Pressure | Deaths | U.S. Landfall Category | Damage (millions US $) |
| Hurricane 1 | 07/11-07/16 | 100 | 0 | Unknown | Category 2 Hurricane | 0 |
| Hurricane 2 | 08/13-08/18 | 100 | 0 | Unknown | No US Landfall | 0 |
| Hurricane 3 | 09/04-09/07 | 80 | 0 | Unknown | No US Landfall | 0 |
| Hurricane 4 | 09/18-09/18 | 80 | 0 | Unknown | No US Landfall | 0 |
| Hurricane 5 | 09/22-09/24 | 100 | 0 | Unknown | No US Landfall | 0 |
| Major Hurricane 6 | 09/24-10/05 | 140 | 0 | 387 | No US Landfall | 0 |
| Tropical Storm 7 | 10/29-10/30 | 70 | 0 | Unknown | Tropical Storm | 0 |
