Hail in Grant County, SD
Hail turns up in Grant County on a regular basis. NOAA radar has confirmed 7 hail events of 1 inch or larger in Grant County since 2025, the largest 1.8″ (golf ball) on August 14, 2025. The most recent confirmed hail was September 12, 2026.
Did hail hit your exact address?
This page covers the whole area. Enter your address to see what NOAA radar detected over your specific roof - free, in seconds.
About Grant County, SD
Grant County occupies the rolling Coteau des Prairies of far northeastern South Dakota, near the Minnesota line. Severe storms are an occasional summer occurrence, and when warm, unstable air meets a passing disturbance the resulting cells have produced hail up toward golf ball size. The nearest coverage, the Sioux Falls radar (KFSD), lies roughly 109 miles to the south, so it sees only the upper structure of storms over the county rather than fine surface detail.
The hail record for Grant County, SD
Hail is a recurring threat in Grant County, with 7 confirmed events on record since 2025.
This year has run hot: 4 confirmed events in 2026 already, ahead of the recent pace.
Rather than a single peak, hail turns up from spring through summer in Grant County, most often in July.
Common questions
How often does it hail in Grant County?
NOAA radar has confirmed 7 severe hail events (1 inch or larger) in the Grant County area since 2025.
When is hail season in Grant County?
Grant County sees hail from spring into early summer, most often in July.
What's the largest hail recorded in Grant County?
Radar confirmed 1.8-inch hail, about golf ball size, on August 14, 2025.
Does homeowner's insurance cover hail damage?
Hail is a covered peril under most standard homeowner's policies (typically HO-3), subject to your deductible. Whether you have replacement-cost or actual-cash-value coverage makes a big difference in what's paid out. Your declarations page will say which.
Is hail getting worse in Grant County?
Nationally, the research on long-term hail trends is mixed. Better radar coverage since the 1990s makes real increases hard to separate from improved detection. In Grant County, 4 confirmed events have been recorded in 2026 so far, but the tracked record is still short, so it isn't evidence of a lasting trend.
Will it hail again in Grant County this year?
Grant County's record already includes more than one confirmed event in a single season. That's what the data shows so far, not a prediction for any given season.
Did it hail in Grant County in 2026?
Yes, 4 confirmed hail events so far in 2026, most recently September 12, 2026.
Recent confirmed hail near Grant County, SD
What this means for your home
Damage can be invisible from the ground
At Grant County's typical sizes, hail often bruises shingles and loosens granules without obvious holes, shortening roof life in ways that are easy to miss until the next storm or an inspection.
Document before you repair
If you suspect hail damage, photograph it and note the storm's date before making any repairs. Undocumented or already-fixed damage is much harder to claim later.
Keep a 'before' record
Photos of your roof and exterior in good condition make new hail damage much easier to prove later. A few shots now, before the next storm, can save an argument with an adjuster over what's old wear and what's storm damage.
Get more than one estimate
After a damaging storm, reputable local roofers get busy and out-of-town crews flood in. Get multiple written estimates and verify licensing and local references before signing anything.
Replacement cost vs. actual cash value
An RCV policy pays to replace your roof at today's prices; an ACV policy subtracts depreciation for the roof's age, which can mean a much smaller check on an older roof. Knowing which you carry shapes what a hail claim is actually worth.
Claims have deadlines
Policies set a deadline for hail-damage claims, and state law may also apply. Windows range from months to several years depending on your state and policy. Knowing the exact date hail hit your address helps you file on time.
Before you call your insurer
Get the radar evidence for your address.
A NOAA Radar Evidence Report documents exactly what federal radar recorded at your address - hail size, date, and signature - in a formatted PDF you can attach to a claim. Built entirely from public NOAA data.
Events are NOAA/NWS Severe Thunderstorm Warnings with confirmed hail ≥ 1 inch, matched to this county by the warning centroid. Federal public-domain data. A confirmed event indicates radar-detected hail over the area, not a guarantee of damage to any specific property.