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NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in and near Hermantown, MN

Public hail, wind, and tornado reports in and near Hermantown, MN from September 8, 1958 through April 17, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 55401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
46
Wind Reports
57
Tornado Reports
0
Max Hail Size
4.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Hermantown, MN · 1958–present Updated  Daily · last Apr 17, 2026

Latest NWS Hail Reports in and near Hermantown, MN

30 reports
Free hail report for your home →
1.25″ hail
Apr 17, 2026
8:51 PM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: Mostly pea size but a few one inch to one and a quarter inch found about 45 minutes after the storm passed.
NWS Hail Report Location: 2 NE Munger, MN
1.00″ hail
Apr 17, 2026
8:01 PM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 NNW Hermantown, MN
1.00″ hail
Jul 21, 2023
12:00 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: Numerous hailstones with the largest stones up to quarter size.
NWS Hail Report Location: Nws Duluth, MN
1.00″ hail
Jul 21, 2023
12:00 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: Spotter reports nickel to quarter sized hail.
NWS Hail Report Location: 1 NNE Hermantown, MN
1.25″ hail
May 30, 2022
10:05 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: PHOTO SENT IN ON SOCIAL MEDIA OF A RULER SHOWING THE SIZE OF THE HAILSTONE.
NWS Hail Report Location: 2 NE Munger, MN
1.00″ hail
May 30, 2022
10:00 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: REPORT SENT IN VIA SOCIAL MEDIA.
NWS Hail Report Location: 4 ESE Twig, MN
1.00″ hail
May 30, 2022
9:59 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 NNE Munger, MN
1.50″ hail
Sep 17, 2021
5:15 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: SOCIAL MEDIA REPORT WITH PICTURE. TIME ESTIMATED BY REPORTER.
NWS Hail Report Location: Munger, MN
1.00″ hail
Sep 17, 2021
5:05 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 NW Hermantown, MN
1.00″ hail
Sep 17, 2021
3:30 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: REPORT VIA SOCIAL MEDIA WITH IMAGE.
NWS Hail Report Location: 1 NE Twig, MN
1.00″ hail
Sep 17, 2021
3:28 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: RELAYED VIA SOCIAL MEDIA WITH PICTURE.
NWS Hail Report Location: 3 NE Twig, MN
1.00″ hail
Jul 27, 2021
1:11 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.).
NWS Hail Report Location: 4 NE Hermantown, MN
1.00″ hail
Sep 1, 2018
3:13 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: MOST HAIL STONES PEA TO PENNY SIZE.
NWS Hail Report Location: Nws Duluth, MN
1.00″ hail
Sep 1, 2018
3:05 AM UTC
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 WSW Hermantown, MN
0.88″ hail
Jun 22, 2015
6:13 AM CST-6
Hail report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.46 SSW Duluth Intl Arpt, MN
Showing 15 of 30
Hail Damage Risk for Your Home +

Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.

Pea
0.25″
Low

Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.

Mothball
0.50″
Sub-Severe Watch

Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.

Penny
0.75″
Minor / Watch

Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.

Nickel
0.88″
Minor / Watch

Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.

Quarter
1.00″
Watch

The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.

Half Dollar
1.25″
Watch

More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.

Ping Pong / Walnut
1.50″
Likely

Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.

Golf Ball
1.75″
Likely

Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.

Hen Egg
2.00″
Serious

Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.

Tennis Ball
2.50″
Serious

Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.

Baseball
2.75″
Major

Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.

Tea Cup / Large Apple
3.00″
Major

Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.

Softball
4.00″
Extreme

Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.

Grapefruit
4.50″
Extreme

Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.

Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.

Latest NWS Wind Reports in and near Hermantown, MN

30 reports
Free hail report + wind check →
UNK mph
May 10, 2024
10:45 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: Large red pine tree on house.
NWS Wind Report Location: 1 ENE Twig, MN
UNK mph
May 10, 2024
10:33 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: Tree down on Munger Shaw Road.
NWS Wind Report Location: 3 S Taft, MN
UNK mph
May 10, 2024
10:28 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: Tree down at Gypsy Creek Farm.
NWS Wind Report Location: 1 SW Hermantown, MN
UNK mph
May 18, 2022
9:12 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: LARGE TREE DOWN AND FALLEN ACROSS UPPER BALCONY PORCH OF A HOUSE ALONG PIKE LAKE. PHOTO VIA KBJR REPORT. TIME ESTIMATED FROM RADAR AND NEARBY OBSERVATIONS.
NWS Wind Report Location: 4 ESE Twig, MN
UNK mph
May 18, 2022
9:10 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: REPORT VIA SOCIAL MEDIA WITH PHOTO. LARGE PINE TREE DOWN ACROSS POWER LINES AND ROAD NEAR A PLUS GARDEN CENTER. TIME ESTIMATED FROM RADAR AND NEARBY OBSERVATIONS.
NWS Wind Report Location: 3 SE Twig, MN
UNK mph
May 18, 2022
9:06 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: TREES UPROOTED. POWER OUTAGES.
NWS Wind Report Location: Twig, MN
UNK mph
May 18, 2022
9:06 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: REPORT VIA SOCIAL MEDIA WITH PICTURE OF HEALTHY SPRUCE TREE DOWN WITH ADDITIONAL DECIDUOUS TREE BRANCHES ON THE GROUND AROUND IT. TIME ESTIMATED VIA RADAR.
NWS Wind Report Location: Twig, MN
UNK mph
May 18, 2022
9:00 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: CALLER REPORTED AROUND 50 TREES DOWN AT THEIR LOCATION ON THE EAST SIDE OF GRAND LAKE. MOST TREES WERE 12 TO 16 INCHES IN DIAMETER WITH SOME COMPLETELY UPROOTED. SOME TREES FEEL ON POWER LINES LEADING TO POWER OUTAGES. TREES WERE ALL AT LEAST 30 YEARS OLD. NO STRUCTURE DAMAGE WAS REPORTED AT THE LOCATION. DELAYED REPORT AND TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 2 SW Twig, MN
UNK mph
May 18, 2022
9:00 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: MULTIPLE SMALL BRANCHES DOWN... A FEW LARGE BRANCHES. WIND LASTED LESS THAN 5 MINUTES. A SMALL AMOUNT OF PEA SIZED HAIL.
NWS Wind Report Location: Twig, MN
UNK mph
May 18, 2022
8:54 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: LARGE TREE ON POWERLINE NEAR A1 GARDEN CENTER.
NWS Wind Report Location: 2 SE Twig, MN
64 mph
Jul 24, 2021
10:06 AM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 3 ENE Hermantown, MN
UNK mph
Jul 24, 2021
10:04 AM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: A TREE BRANCH ABOUT A FOOT IN DIAMETER WAS SNAPPED OFF AN ASH TREE AT THE NWS OFFICE. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 3 NE Hermantown, MN
UNK mph
Aug 17, 2020
12:58 AM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: A TREE WAS DOWN ON A POWER LINE IN SOLWAY TOWNSHIP. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 1 NW Munger, MN
61 mph
Aug 5, 2019
2:27 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: MEASURED BY THE KDLH ASOS AT THE DULUTH INTERNATIONAL AIRPORT.
NWS Wind Report Location: 4 NE Hermantown, MN
UNK mph
Jul 4, 2018
2:32 PM UTC
Wind report for Hermantown, MN
St. Louis County · 77,023 Homes in County
Wind Report Description: UPDATES PREVIOUS TSTM WND DMG REPORT. SEVERAL LARGE TREES UPROOTED AND SNAPPED ACROSS THE PROPERTY. TREE FELL ON ROOF. DAMAGE TO ROOFING SHINGLES.
NWS Wind Report Location: 3 NW Hermantown, MN
Showing 15 of 30
Wind Damage Risk for Your Home +

Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.

Below Severe
Under 58 mph
Minor

Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.

Severe
58–74 mph
Watch

Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.

Damaging
75–90 mph
Serious

Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.

Extreme
90+ mph
Major

Can cause major roof covering loss, tree damage, broken windows, and structural damage.

Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.

Latest NWS Tornado Reports in and near Hermantown, MN

0 reports

No tornado reports were found for this selection.

Showing 0 of 0
Tornado Damage Risk for Your Home +

After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.

EF0
65–85 mph
Light

Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.

EF1
86–110 mph
Moderate

Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.

EF2
111–135 mph
Serious

Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.

EF3–EF5
136+ mph
Severe

Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.

Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.

NWS Hail, Wind and Tornado Reports in and near Hermantown, MN on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Hermantown

55810 44
Hermantown, MN Hail, wind & tornado reports
55811 71
Hermantown, MN Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Hermantown, MN area census snapshot

People & households
Population10,192
Households3,741
Housing units3,878
Income
Median household income$92,026
$100k+ households49.0%
$150k+ households20.1%
Housing stock
Single-family detached2,892
Attached single-family269
Small multifamily274
Large multifamily268
Mobile homes175
Housing mix
Single-family share74.6%
Attached-home share6.9%
Multifamily share14.0%
Mobile-home share4.5%
Ownership & occupancy
Owner-occupied2,806
Renter-occupied935
Vacant units137
Home value & age
Median home value$374,000
Owner homes $300k+67.4%
Owner homes $500k+24.2%
Owner homes $750k+3.3%
Median year built1992
Older-home share37.4%
Vehicle context
Households with cars3,645
Free hail maps

This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does Hermantown have on record?

Our records show 46 hail, 57 wind, and 0 tornado reports in and near Hermantown, MN, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on April 17, 2026.

What is the largest hail ever reported in Hermantown?

The largest hail size in these storm-report records in and near Hermantown, MN is 4.00″. It was reported near Hermantown, MN on September 8, 1958.

A storm report showed up near my home in Hermantown — does that mean my roof is damaged?

Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Hermantown and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Hermantown — why should I look at its storm history?

Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Hermantown address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Hermantown — how does this help me?

Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.

How do I check hail history for a specific Hermantown address?

Use the address search to pull a free address-level hail report for any property in Hermantown — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.

Where does this storm report data come from, and what are its limits?

Storm reports on this page are public reports from storm events across Hermantown, MN, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Hermantown, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.

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