Sioux City hail storm history
Woodbury County·NOAA NCEI Storm Events Database·~75-day publication lag
Sioux City, located in Woodbury County in northwestern Iowa near the Nebraska border, experiences regular hail events due to its position along the dryline corridor. Supercell thunderstorms initiated over the Kansas and Nebraska plains frequently intensify as they move eastward into the Sioux City area, making this region a documented hail pathway.
Check if your roof was damaged by recent hail
Hail in Sioux City peaks during May and June, when atmospheric conditions favor supercell development along the dryline. Secondary activity occurs in April and July as the seasonal storm pattern shifts. Storms reaching Sioux City during these months tend to be at or near peak intensity, increasing the likelihood of larger hail sizes and widespread damage.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 111 recorded events, 27 (24%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Observed hail was pea to nickel size, although most hailstones were the size of dimes.
Significant damage occurred to campers at the Willow Creek Campground from wind-driven hail. Hail la…
Hail was mostly dime to nickel size, but some stones were as big as a quarter.
Nickel to quarter size hail fell for around 6 minutes, with a few stones slightly larger than quarte…
Quarter to half-dollar size hail was reported.
The office received a photo of significant damage to siding and windows on a home in Whiting, Iowa. …
Golf ball sized hail was reported by a trained spotter along Interstate 29 west of Whiting.
Hail mainly of half dollar size or a bit larger covered the ground.
Hail size was estimated between 2 and 2.5 inches based on photo with adjacent quarter.
Hail 1.0 inch in diameter fell in Remsen.
Hail varied from dime to nickel size.
The wind-driven hail damage path continued out of Plymouth and Cherokee Counties into Woodbury Count…
Hail was mostly dime to nickel size, but some stones were as large as quarters.
The public reported 1 inch hail in Whiting.
Hail up to the size of golf balls occurred with the storm resulting in a few broken windshields.
Hail covered the ground.
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 ↗