Hail in Dewey County, SD
Hail in Dewey County regularly reaches sizes that can wreck roofs and total vehicles. NOAA radar has confirmed 23 hail events of 1 inch or larger in Dewey County since 2025, the largest 2.9″ (baseball) on August 30, 2026. The most recent confirmed hail was September 5, 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 Dewey County, SD
Dewey County sits in north-central South Dakota, rolling plains and rangeland on the Cheyenne River Reservation above the Missouri River. Midsummer brings the most hail, when warm, humid plains air feeds tall storms that track across the open country. Bismarck's KBIS radar offers the nearest watch about 112 miles to the north; at that distance its beam rides well above the county and reads storm structure aloft more than what reaches the ground.
The hail record for Dewey County, SD
A single 2.9″ storm is enough to put a neighborhood into a roofing season. That's the size Dewey County has already seen.
Hail is closer to routine than rare in Dewey County, with 23 confirmed events on the radar record since 2025.
There's no single dangerous week in Dewey County. Hail spreads across spring and early summer, peaking in July.
Common questions
How often does it hail in Dewey County?
NOAA radar has confirmed 23 severe hail events (1 inch or larger) in the Dewey County area since 2025.
When is hail season in Dewey County?
Dewey County sees hail from spring into early summer, most often in July.
What's the largest hail recorded in Dewey County?
Radar confirmed 2.9-inch hail, about baseball size, on August 30, 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.
Has Dewey County had hail big enough to total a roof?
2.9″ hail is in the range where damage can be severe enough to warrant a full roof replacement on standard asphalt shingles. Whether a roof is actually totaled depends on its material and age, how intense the storm was at your specific address, and your insurer's inspection. Hail size alone doesn't decide it.
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.
Should I file a hail claim or pay out of pocket?
It depends on the damage versus your deductible. At the 2.9″ sizes seen here, damage often exceeds a typical deductible, which can make a claim worthwhile, but get a repair estimate first to compare, and keep in mind that filing can affect future premiums.
Recent confirmed hail near Dewey County, SD
What this means for your home
Don't overlook vehicle damage
Hail at the 2.9″ sizes Dewey County has seen also dents vehicles, cracks glass, and chips paint. Document car damage alongside your roof before any repairs. Both can be part of the same claim.
If you were just hit
With recent hail in Dewey 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.
Read anything before you sign it
Some contractors ask storm-hit homeowners to sign an "assignment of benefits," which can hand control of your insurance claim to them. Read it closely. You can document and file a claim yourself without giving that up.
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.
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.