Peoria hail storm history
Peoria County·NOAA NCEI Storm Events Database·~75-day publication lag
Peoria County has experienced 2 documented hail events of 1 inch or larger over the past 10 years, with the largest recorded hailstone measuring 1 inch in diameter on December 28, 2025. The relatively flat terrain of central Illinois allows storm systems to maintain intensity as they move northeast, creating conditions where hail can develop even if severe weather remains geographically limited.
Hail in Peoria County occurs most frequently during spring months, with April, May, and June representing the peak season. May typically sees the highest activity, while March and July experience secondary hail potential. The timing reflects the seasonal setup when warm, moist air from the Gulf interacts with cold air masses moving across the Midwest.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 270 recorded events, 62 (23%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
The hail lasted for seven minutes.
Penny sized hail was observed at the intersection of Route 150 and Prospect Road.
The hail caused significant damage to vehicles, with several cars requiring towing from the roadway.
Public report from mPING.
Half dollar-sized hail was reported at the White Oak Campground in Comlara Park.
Dozens of vehicles and numerous homes sustained significant damage from the hailstorm that impacted …
Wind-driven hail caused significant damage to the roofs and siding of 50 houses in Elmwood. One hou…
Peoria County's 10-year hail event record reflects only 2 events at the 1-inch threshold, a relatively low frequency that may underrepresent actual occurrences due to NOAA reporting density in less densely populated areas. Many smaller hail events may not be formally documented if they occur in rural zones or affect limited geographic areas. Current-year data is excluded from the annual frequency table until October, when NOAA's Storm Events Database has processed the full hail season accounting for the standard 75-day reporting lag.
NOAA Storm Events Database source