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

Hail, Wind & Tornado Reports in and near Grenville, SD

Public hail, wind, and tornado reports in and near Grenville, SD from July 15, 1980 through August 10, 2016, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 57239 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
19
Wind Reports
11
Tornado Reports
4
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Grenville, SD · 1980–present Updated  Daily · last Aug 10, 2016

Latest NWS Hail Reports in and near Grenville, SD

19 reports
Free hail report for your home →
1.00″ hail
Aug 10, 2016
9:50 PM UTC
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: .
NWS Hail Report Location: 5 WSW Waubay Wildlife R, SD
1.00″ hail
Sep 1, 2014
4:00 PM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.51 NE Grenville, SD
1.75″ hail
Aug 31, 2013
2:41 PM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 9.55 ENE Grenville, SD
0.88″ hail
Jun 16, 2013
1:54 PM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.17 ENE Grenville, SD
1.00″ hail
Jun 10, 2012
3:17 AM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.86 E Grenville, SD
0.88″ hail
Jun 24, 2009
7:35 PM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: A large amount of hail had fallen covering the roads and drifting in places.
NWS Hail Report Location: .48 E Grenville, SD
1.00″ hail
Apr 29, 2009
9:10 PM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8.02 NE Grenville, SD
1.50″ hail
Jul 31, 2008
4:15 AM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.16 ESE Grenville, SD
0.75″ hail
Jun 7, 2007
11:40 AM CST-6
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.97 NNE Grenville, SD
1.75″ hail
Aug 10, 2006
6:25 PM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 W Grenville, SD
1.75″ hail
Aug 10, 2006
6:14 PM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8 NE Grenville, SD
0.88″ hail
Jul 20, 2003
3:15 AM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 N Grenville, SD
0.75″ hail
Jul 22, 2001
11:38 PM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 NE Grenville, SD
0.88″ hail
Aug 28, 1999
1:14 AM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 NE Grenville, SD
0.75″ hail
Jul 21, 1991
4:35 PM CST
Hail report for Grenville, SD
Day County · 2,939 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, SD
Showing 15 of 19
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 Grenville, SD

11 reports
Free hail report + wind check →
81 mph
Jul 26, 2011
8:30 PM CST-6
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Eighty mph winds downed several trees.
NWS Wind Report Location: 6.17 ENE Grenville, SD
60 mph
Jul 10, 2011
5:10 PM CST-6
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Sixty mph winds flipped a boat over along with downing many branches.
NWS Wind Report Location: 6.17 ENE Grenville, SD
85 mph
Jul 31, 2008
4:00 AM CST-6
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Many large trees were downed at Pickeral Lake State Park.
NWS Wind Report Location: 6.17 ENE Grenville, SD
60 mph
Jul 3, 2005
1:00 AM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 5 NE Grenville, SD
81 mph
Jun 7, 2005
11:05 PM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Winds to 80 mph downed several trees and rolled and destroyed a 14 by 58 foot mobile home.
NWS Wind Report Location: 6 NE Grenville, SD
75 mph
Jul 20, 2003
3:15 AM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Winds over 70 mph brought down several large trees north of Grenville.
NWS Wind Report Location: 6 N Grenville, SD
64 mph
Jul 22, 2001
11:45 PM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Many large tree branches were downed by the high winds.
NWS Wind Report Location: 7 E Grenville, SD
60 mph
Jul 15, 2000
10:35 PM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: High winds brought several large branches down.
NWS Wind Report Location: 6 NE Grenville, SD
70 mph
Jul 27, 1999
4:40 PM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: Winds to 70 mph blew several trees down near Pickeral Lake.
NWS Wind Report Location: 7 NE Grenville, SD
UNK mph
Jul 12, 1981
4:30 AM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, SD
UNK mph
Jul 15, 1980
3:30 PM CST
Wind report for Grenville, SD
Day County · 2,939 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, SD
Showing 11 of 11
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 Grenville, SD

4 reports
EF0 category
Jul 17, 2015
6:47 PM CST-6
Tornado report for Grenville, SD
Day County · 2,939 Homes in County
Tornado Report Description: A tornado touched down southeast of Grenville damaging several trees in a couple shelter belts along with some corn. Near the end of its path, a horse trailer was rolled, a barn suffered significant roof damage, and numerous branches were downed.
NWS Tornado Report Location: 2.63 ESE Grenville, SD
F0 category
Jul 20, 1998
5:08 PM CST
Tornado report for Grenville, SD
Day County · 2,939 Homes in County
Tornado Report Description: A landspout tornado touched down northeast of Grenville near Enemy Swim Lake. The tornado pulled up two fence posts, some water, and some hay was spread around as it moved southeast. Path length and width were estimated.
NWS Tornado Report Location: NE Grenville, SD
F0 category
Jul 17, 1996
7:51 PM CST
Tornado report for Grenville, SD
Day County · 2,939 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Grenville, SD
F0 category
Oct 6, 1994
4:54 PM CST
Tornado report for Grenville, SD
Day County · 2,939 Homes in County
Tornado Report Description: A brief tornado touchdown was reported by state police.
NWS Tornado Report Location: Not provided, SD
Showing 4 of 4
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 Grenville, SD on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Grenville

57239 31
Grenville, SD Hail, wind & tornado reports
57274 161
Webster, SD Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Grenville, SD area census snapshot

People & households
Population70
Households35
Housing units51
Income
Median household income$83,125
$100k+ households51.4%
$150k+ households--
Housing stock
Single-family detached46
Attached single-family5
Small multifamily0
Large multifamily0
Mobile homes0
Housing mix
Single-family share90.2%
Attached-home share9.8%
Multifamily share--
Mobile-home share--
Ownership & occupancy
Owner-occupied33
Renter-occupied2
Vacant units16
Home value & age
Median home value$43,100
Owner homes $300k+6.1%
Owner homes $500k+--
Owner homes $750k+--
Median year built1938
Older-home share100%
Vehicle context
Households with cars35
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 Grenville have on record?

Our records show 19 hail, 11 wind, and 4 tornado reports in and near Grenville, SD, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 10, 2016.

What is the largest hail ever reported in Grenville?

The largest hail size in these storm-report records in and near Grenville, SD is 1.75″. It was reported near Grenville, SD on August 31, 2013.

A storm report showed up near my home in Grenville — 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 Grenville and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Grenville — 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 Grenville address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Grenville — 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 Grenville address?

Use the address search to pull a free address-level hail report for any property in Grenville — 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 Grenville, SD, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Grenville, 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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