On May 22, 2008, a tornado rated EF3 and hail up to 2.75 inches hit Windsor and northern Colorado. NCEI holds 32 reports across Boulder, Jefferson, Larimer and Weld counties, at places including Windsor, Loveland, Longmont, Timnath, Golden and Fort Collins, and records 79 people injured and 1 killed.
RMIIA puts insured losses at $193.5 million in 2008 dollars, a figure that covers both the tornado and the hail. It adjusts that to $297 million in 2026 dollars on its hail page and $291 million in 2025 dollars on its catastrophe page. The NWS damage estimate in NCEI is $147 million.
Hail history for the counties hit
- Denver metro hail history
- Larimer and Weld counties: see the full Colorado table
Significant Colorado storms around 2008
- June 6, 2009: hail to 3 in., $353.3 million (2009 dollars) insured
- July 20, 2009: hail to 2 in., $767.6 million (2009 dollars) insured
- July 29, 2009: hail to 2.5 in., $232.8 million (2009 dollars) insured
- May 26, 2010: hail to 2.75 in.
- The full Colorado storm table
Sources: Hail Damage and Statistics: Colorado's Most Costly Hail Storms (RMIIA); Tornadoes & Wind (RMIIA); NOAA NCEI Storm Events Database, episode 16122 (NOAA National Centers for Environmental Information).
