Hail in Plymouth County, IA
Hail turns up in Plymouth County on a regular basis. NOAA radar has confirmed 15 hail events of 1 inch or larger in Plymouth County since 2025, the largest 2.7″ (tennis ball) on May 17, 2026. The most recent confirmed hail was October 9, 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 Plymouth County, IA
Plymouth County sits in the far northwest corner of Iowa, where the Big Sioux River marks the line with South Dakota and the loess hills roll above the floodplain. Early-summer storms feed on warm, humid air drawn north across the plains, and the stronger ones can build hail to a fair size. Sioux Falls' KFSD radar watches from roughly 64 miles to the northwest, close enough to follow cells while its lower sweeps begin to ride above the ground here.
The hail record for Plymouth County, IA
Hail is a recurring threat in Plymouth County, with 15 confirmed events on record since 2025.
This year has run hot: 9 confirmed events in 2026 already, ahead of the recent pace.
Most confirmed hail in Plymouth County falls between spring and early summer, with June the busiest month.
Common questions
How often does it hail in Plymouth County?
NOAA radar has confirmed 15 severe hail events (1 inch or larger) in the Plymouth County area since 2025.
When is hail season in Plymouth County?
Plymouth County sees hail from spring into early summer, most often in June.
What's the largest hail recorded in Plymouth County?
Radar confirmed 2.7-inch hail, about tennis ball size, on May 17, 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.
Is hail getting worse in Plymouth 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 Plymouth County, 9 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.
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.
Recent confirmed hail near Plymouth County, IA
What this means for your home
If you were just hit
With recent hail in Plymouth 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 Plymouth 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.
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.
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.