- seventh consecutive year that a storm formed before the designated start of the season (6/1)
- Tropical Storm Ana formed on May 22
- most active June on record, tying 1886, 1909, 1936, and 1968 with three named storms forming
- July 1, Hurricane Elsa formed, surpassing 2020's Tropical Storm Edouard as the earliest-forming fifth named storm on record by five days
- seven named storms formed in August, including
- the season's first major hurricanes: Grace, which intensified to a Category 3 hurricane
- and Ida, a deadly and destructive hurricane that made landfall in the U.S. state of Louisiana at Category 4 strength
Rank | Cost | Season |
|---|---|---|
1 | ≥ $294.703 billion | 2017 |
2 | $172.297 billion | 2005 |
3 | $72.341 billion | 2012 |
4 | $61.148 billion | 2004 |
5 | ≥ $53.438 billion | 2021 |
6 | ≥ $51.146 billion | 2020 |
7 | ≥ $50.126 billion | 2018 |
8 | ≥ $48.855 billion | 2008 |
9 | $27.302 billion | 1992 |
10 | ≥ $17.485 billion | 2016 |
Source: https://en.wikipedia.org/wiki/2021_Atlantic_hurricane_season