Louisville hail storm history
Boulder County·NOAA NCEI Storm Events Database·~75-day publication lag
Louisville sits on the Boulder County segment of Colorado's Front Range, where afternoon thunderstorms tracking northeast from the Rocky Mountains create regular hail risk during the warm season. The city's elevation and proximity to mountain-influenced wind patterns expose it to convective hail events that can produce significant damage to roofing and vehicles.
Check if your roof was damaged by recent hail
Hail risk in Louisville peaks between May and July, with secondary activity in April and August. Most significant hail events occur during afternoon and early evening hours (2 p.m. to 7 p.m. MT) when atmospheric instability is greatest. Storms typically develop inland and track toward the northeast, meaning Louisville residents should monitor weather alerts during these months.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 26 recorded events, 8 (31%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
The report was from mPING.
NOAA National Centers for Environmental Information Storm Events Database. Publication lag is approximately 75 days — current-year events may be incomplete.
NOAA Storm Events Database ↗