1981 season
Atlantic (22)
- Unnamed Tropical Depression, AL01 1981Tropical Depression · 35 mph · Apr 6–Apr 7
- Unnamed Tropical Depression, AL02 1981Tropical Depression · 30 mph · Apr 19–Apr 21
- Tropical Storm ArleneTropical Storm · 60 mph · May 6–May 9
- Unnamed Tropical Depression, AL04 1981Tropical Depression · 35 mph · Jun 3–Jun 5
- Unnamed Tropical Depression, AL05 1981Tropical Depression · 35 mph · Jun 17–Jun 19
- Tropical Storm BretTropical Storm · 70 mph · Jun 29–Jul 1
- Unnamed Tropical Depression, AL07 1981Tropical Depression · 35 mph · Jul 2–Jul 4
- Unnamed Tropical Depression, AL08 1981Tropical Depression · 35 mph · Jul 25–Jul 26
- Tropical Storm CindyTropical Storm · 60 mph · Aug 2–Aug 5
- Hurricane DennisHurricane Category 1 · 80 mph · Aug 7–Aug 22
- Unnamed Tropical Depression, AL11 1981Tropical Depression · 35 mph · Aug 17–Aug 21
- Unnamed Tropical Depression, AL12 1981Tropical Depression · 35 mph · Aug 26–Aug 29
- Hurricane EmilyHurricane Category 1 · 90 mph · Aug 31–Sep 12
- Hurricane FloydHurricane Category 3 · 115 mph · Sep 3–Sep 12
- Hurricane GertHurricane Category 2 · 105 mph · Sep 7–Sep 15
- Hurricane HarveyHurricane Category 4 · 130 mph · Sep 11–Sep 20
- Unnamed Tropical Depression, AL17 1981Tropical Depression · 35 mph · Sep 12–Sep 14
- Hurricane IreneHurricane Category 3 · 120 mph · Sep 21–Oct 3
- Unnamed Tropical Depression, AL19 1981Tropical Depression · 35 mph · Sep 26–Oct 4
- Tropical Storm JoseTropical Storm · 50 mph · Oct 29–Nov 2
- Hurricane KatrinaHurricane Category 1 · 85 mph · Nov 3–Nov 7
- Unnamed Subtropical Storm, AL22 1981Subtropical Storm · 70 mph · Nov 12–Nov 17
Eastern Pacific (15)
- Tropical Storm AdrianTropical Storm · 45 mph · May 30–Jun 4
- Hurricane BeatrizHurricane Category 1 · 85 mph · Jun 28–Jul 4
- Tropical Storm CalvinTropical Storm · 50 mph · Jul 4–Jul 9
- Hurricane DoraHurricane Category 1 · 90 mph · Jul 10–Jul 16
- Tropical Storm EugeneTropical Storm · 50 mph · Jul 16–Jul 21
- Hurricane FernandaHurricane Category 2 · 105 mph · Aug 6–Aug 13
- Hurricane GregHurricane Category 1 · 75 mph · Aug 13–Aug 22
- Hurricane HilaryHurricane Category 1 · 85 mph · Aug 21–Aug 28
- Tropical Storm IrwinTropical Storm · 50 mph · Aug 27–Aug 31
- Hurricane JovaHurricane Category 1 · 85 mph · Sep 14–Sep 21
- Tropical Storm KnutTropical Storm · 65 mph · Sep 19–Sep 21
- Tropical Storm LidiaTropical Storm · 50 mph · Oct 6–Oct 8
- Tropical Storm MaxTropical Storm · 50 mph · Oct 7–Oct 10
- Hurricane NormaHurricane Category 3 · 125 mph · Oct 8–Oct 12
- Hurricane OtisHurricane Category 1 · 85 mph · Oct 24–Oct 30