*Source - Storm Data Publication published by the National Climatic Data Center and severe weather reports issued by the National Weather Service.
| Date | County | Description | Length (miles) | Width (yards) | |
|---|---|---|---|---|---|
| 1 | February 14, 1991 | Pickens | (F1) A tornado mowing from the SW to the NE uprooted many trees and damaged numerous homes and mobile homes. The damage path of the tornado implies that the tornado never actually touched the ground. | 2 | 150 |
| 2 | March 1, 1991 | Aiken | (F2) A tornado moving from west to east caused damage to a stand of timber at the Savannah River Site. | 2 | 150 |
| 3 | March 2, 1991 | Darlington | (F0) A tornado injured two people, destroyed five mobile homes, and caused structural damage on several other mobile homes and a house. | <1 | 100 |
| 4 | March 3, 1991 | Aiken | (F2) Two separate tornadoes moving from SW to NE damaged a stand of timber on the Savannah River Site. One of these tornadoes had a five mile long path, the other a six mile long path. | 5 | 200 | 5 | March 3, 1991 | Aiken | (F2) Two separate tornadoes moving from SW to NE damaged a stand of timber on the Savannah River Site. One of these tornadoes had a five mile long path, the other a six mile long path. | 6 | 300 |
| 6 | March 29, 1991 | Aiken | (F2) A tornado briefly touched down causing impressive damage to trees and power poles. The 20 inch diameter poles were snapped 15 feet off the ground and trees were snapped and dropped off. | <1 | 10 |
| 7 | March 29, 1991 | Chesterfield | (F0) A tornado injured four individuals (two critically), destroyed two mobile homes and damaged five others. | <1 | 10 |
| 8 | March 29, 1991 | Marlboro | (F1) A tornado damaged nine homes and five barns in its 1.5 mile long path. Damages ranged from minor to moderate. | 1.5 | 100 |
| 9 | April 29, 1991 | Greenwood | (F0) A small tornado touched down near Dyson, but caused only minor damages to trees and power lines. | <1 | 20 |
| 10 | May 5, 1991 | Clarendon | (F0) A small tornado touched down briefly and tossed a 30 ft trailer onto a house. No one was injured. | <1 | 70 |
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