Sioux Falls hail storm history
Minnehaha County·NOAA NCEI Storm Events Database·~75-day publication lag
Sioux Falls, located in Minnehaha County, has experienced 8 hail events of 1 inch or larger over the past 10 years, averaging 0.8 events per year. The city sits in eastern South Dakota where Gulf moisture, westward elevated terrain, and the low-level jet converge to produce hail storms capable of significant property damage.
Hail season in Sioux Falls peaks during June and July, with secondary activity in May and August. The timing of peak hail activity occurs later in the season compared to the Southern Plains due to Sioux Falls' higher latitude, and the most intense storms typically develop when atmospheric conditions align with the late spring and early summer moisture pattern.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 179 recorded events, 35 (20%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Hail was mostly pea to dime size, but some was as large as quarters.
Observed hail was from quarter to golf ball size.
Hail varied from quarter to half-dollar size.
Occasional pea to dime size hail covered the ground.
Hail up to 0.88 inch in diameter fell 10 miles east of Trent, covering the ground.
Hail varied from dime to nickel size.
Crop damage is an estimate from insured losses. Information provided by the United States Department…
Wind driven hail produced some leaf and limb damage.
Crop damage is an estimate from insured losses. Information provided by the United States Department…
Hail up to nickel size fell 2 to 3 miles east of Chancellor along South Dakota Highway 44.
Crop damage is an estimate from insured losses. Information provided by the United States Department…
Crop damage is an estimate from insured losses. Information provided by the United States Department…
Crop damage is an estimate from insured losses. Information provided by the United States Department…
Hail was mostly dime to nickel sized, with a few stones as large as quarters.
Intermittent hail from quarter to half dollar size fell for a little over a minute.
Hail varied between dime and quarter size.
Mainly quarter to half dollar size hail, with a few golf ball size stones.
Hail accompanied by measured wind gusts to 68 mph.
Hail produce some minor crop damage.
Social Media report.
Report received through social media.
Social Media report.
Social media report.
Hail was mostly quarter size or smaller with just a few stones of golf ball size.
Minnehaha County's NOAA Storm Events Database records show 14 documented hail events of 1 inch or larger, with 1 significant event of 1.5 inches or greater—the threshold at which functional roof damage becomes likely on standard asphalt shingles. The largest recorded hail event in the county measured 1.75 inches on August 6, 2025. 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