Hail in Corson County, SD
Corson County is one of the more hail-prone places in the country. NOAA radar has confirmed 25 hail events of 1 inch or larger in Corson County since 2025, the largest 2.5″ (tennis ball) on August 12, 2026. The most recent confirmed hail was September 6, 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 Corson County, SD
Corson County stretches across north-central South Dakota along the North Dakota line, rolling grassland that drains toward the Missouri River. Hail rides in with the strong summer thunderstorms that form when prairie heat meets passing fronts. Bismarck's KBIS radar watches from roughly 76 miles to the north, far enough that its beam climbs above the surface and shows storm structure aloft more than what reaches the ground.
The hail record for Corson County, SD
Hail is closer to routine than rare in Corson County, with 25 confirmed events on the radar record since 2025.
The dangerous window runs spring into early summer, with September the busiest month on record.
Common questions
How often does it hail in Corson County?
NOAA radar has confirmed 25 severe hail events (1 inch or larger) in the Corson County area since 2025.
When is hail season in Corson County?
Corson County sees hail from spring into early summer, most often in September.
What's the largest hail recorded in Corson County?
Radar confirmed 2.5-inch hail, about tennis ball size, on August 12, 2026.
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.
How do I know if my roof was damaged by hail?
Common signs are granules collecting in gutters and downspouts, bruised or cracked shingles, and dents on soft metals like vents, flashing, and gutter tops. A lot of hail damage isn't visible from the ground, so a professional inspection is the reliable check.
Hail just hit, what should I do?
Safely photograph any hail and note the time, then confirm what radar recorded at your address before calling your insurer. Most policies require prompt notice after a hail event, and deadlines vary by policy and state, so don't wait to document it.
Will it hail again in Corson County this year?
Corson 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.
Recent confirmed hail near Corson County, SD
What this means for your home
If you were just hit
With recent hail in Corson County, you're still in the window to document and report it. Photograph any damage, note the storm date, confirm what radar detected at your address, and review your policy's reporting requirements. Deadlines vary.
Damage can be invisible from the ground
At Corson 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.
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.
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.
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.