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Hail Map with Reports for Mason City, IA

View the free hail map with reports for Mason City, IA from December 15, 2021. This event is marked as Complete, with a Light storm impact level and a Low Event Inspection Score.

Free Interactive Hail Map Hail Report by ZIP
Low
Event Inspection Score
Light
Storm Impact
Complete
Event Status
Dec 15, 2021
Event Date
Map Preview

Hail Swath Map Preview

The Mason City, IA hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 0.75". There are 2 public hail reports, 37 public wind reports, and 0 nearby tornado reports listed for the December 15, 2021 event.

Region: Mason City, IA
December 15, 2021 Hail swath map preview for Mason City, IA on December 15, 2021
Open Interactive Map
Max Hail
0.75"
Mapped estimated hail size
Public Hail Reports
2
Largest report: 1.00"
Public Wind Reports
37
Reports near map area
Tornado Reports
0
Reports near map area

View the December 15, 2021 Mason City, IA hail event on the free interactive hail map, then check a free Hail Report by ZIP to see a more local hail signal for your area.

View Free Interactive Hail Map
Map Footprint

Impact Area and Population for the Mason City, IA Hail Map

The December 15, 2021 hail swath map for Mason City, IA covers approximately 173 square miles and includes an estimated 3,481 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 106 square miles. The highest estimated population exposure is in the < 0.50" hail band with 2,026 people.

Mapped Impact Area
173 sq mi
Largest band: < 0.50"
Population Inside Footprint
3,481
Highest population band: < 0.50"
Mapped Hail BandImpact AreaPopulation
< 0.50"106 sq mi2,026
0.50-0.75"63 sq mi1,422
0.75-1.00"5 sq mi33

Get a free Hail Report by ZIP to see a more local hail signal and whether the December 15, 2021 Mason City, IA hail event may have reached your area.

Housing Impact

Housing Exposure Inside the Mason City, IA Hail Swath Map

Inside the December 15, 2021 hail swath map area for Mason City, IA, HailGeeks estimates 1,782 single-family homes, 41 townhomes, and 301 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 1,013 single-family homes.

Single-Family Homes
1,782
Largest band: < 0.50"
Townhomes
41
Largest band: < 0.50"
Multifamily Properties
301
Largest band: < 0.50"
Mapped Hail BandSingle-FamilyTownhomesMultifamily
< 0.50"1,01327180
0.50-0.75"75113121
0.75-1.00"1810

Use this table to review housing exposure by hail band for the December 15, 2021 Mason City, IA hail map. To check a specific property more closely, use a free Hail Report by Address.

Affected Counties

Counties Inside the Mason City, IA Hail Map

Hail from the December 15, 2021 storm was mapped across 4 counties in the Mason City, IA region. Franklin County, IA had the strongest mapped signal, peaking at 0.75" with roughly 799 single-family homes inside the swath.

Franklin CountyIA
799 homes in the hail path
Hardin CountyIA
469 homes in the hail path
Hamilton CountyIA
55 homes in the hail path
Wright CountyIA
10 homes in the hail path
Showing 9 of 4 counties

County pages group every mapped hail event in the area. For a closer look, drop to the city or ZIP level below, or run a free Hail Report by Address.

Affected Cities

Cities Inside the Mason City, IA Hail Map

Zooming in, the swath touched 2 cities near Mason City, IA. Hampton, IA had the strongest mapped signal at 0.50", with an estimated 267 single-family homes exposed.

HamptonIA
267 homes in the hail path
AldenIA
59 homes in the hail path
Showing 12 of 2 cities

City cards show where the December 15, 2021 Mason City, IA hail activity was mapped, but your ZIP can show a closer local signal. Get a free Hail Report by ZIP, and if the signal looks meaningful, ask a local pro about a Remote Hail Inspection to see whether an on-site roof or exterior review may be worth scheduling.

ZIP Codes

ZIP Codes Inside the Mason City, IA Hail Swath Map

At the ZIP level, the December 15, 2021 Mason City, IA hail map spans 7 ZIP codes. ZIP 50006 shows the strongest local signal, with mapped hail estimates up to 0.75" and an estimated single-family-home exposure of 380.

50006Alden, IA
380 homes in the hail path
50441Hampton, IA
779 homes in the hail path
50126Iowa Falls, IA
89 homes in the hail path
50271Williams, IA
34 homes in the hail path
50034Blairsburg, IA
21 homes in the hail path
50633Geneva, IA
20 homes in the hail path
50071Dows, IA
10 homes in the hail path
Showing 12 of 7 ZIP codes

Check your ZIP in seconds to see whether hail activity from the December 15, 2021 Mason City, IA event was mapped near your area.

Public Storm Reports

Public Hail, Wind, and Tornado Reports

Public storm report tables connected to the December 15, 2021 hail map for Mason City, IA currently list 2 public hail reports, 37 public wind reports, and 0 tornado reports.

Date & TimeHail SizeCityStateDescription
December 15, 2021
6:32 PM CT
 1.00 in 2 WNW Coulter IA

QUARTER SIZE HAIL REPORTED AT HWY 3 AND INTERSTATE 35.
December 15, 2021
7:09 PM CT
 1.00 in Charles City IA

NICKEL TO QUARTER SIZED HAIL REPORTED.
Showing 2 public hail reports

This table includes only public storm reports connected to the December 15, 2021 Mason City, IA storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.

Related Hail Maps

Related Hail Maps in the Mason City, IA Region

We found 6 more hail maps with reports from the same Mason City, IA region as the December 15, 2021 event. These related maps cover storm dates from Sep 7, 2021 through Nov 10, 2021, with mapped hail estimates ranging from 0.75" to 2.25". In this set, the strongest related map reached 2.25", and the most recent map shown is from Nov 10, 2021.

Hail map for Mason City, IA on Sep 7, 2021
Sep 7, 2021
0.75″ Hail
Event Inspection ScoreLow
Mason City, IA
48 HomesHail map with reports →
Hail map for Mason City, IA on Sep 12, 2021
Sep 12, 2021
0.75″ Hail
Event Inspection ScoreLow
Mason City, IA
13K HomesHail map with reports →
Hail map for Mason City, IA on Sep 28, 2021
Sep 28, 2021
1.75″ Hail
Event Inspection ScoreModerate
Mason City, IA
634 HomesHail map with reports →
Hail map for Mason City, IA on Oct 8, 2021
Oct 8, 2021
1.00″ Hail
Event Inspection ScoreLow
Mason City, IA
264 HomesHail map with reports →
Hail map for Mason City, IA on Oct 9, 2021
Oct 9, 2021
2.25″ Hail
Event Inspection ScoreModerate
Mason City, IA
1K HomesHail map with reports →
Hail map for Mason City, IA on Nov 10, 2021
Nov 10, 2021
1.00″ Hail
Event Inspection ScoreLow
Mason City, IA
136 HomesHail map with reports →

If none of these related Mason City, IA hail maps look close enough to your property, check a free Hail Report by Address. It reviews hail history for a specific location — not just the broader Mason City, IA region — so you can check whether hail activity may have reached your property.

Remote Hail Inspection

Local Hail Review Options Near Mason City, IA

Not sure whether the December 15, 2021 Mason City, IA hail map matters for your property? Start with a free Hail Report by Address to see whether hail activity was mapped for that property. If the property signal looks meaningful, you can choose a local pro serving the Mason City, IA region and ask about a Remote Hail Inspection before deciding whether an on-site roof or exterior review is worth scheduling.

Get a Free Hail Report by Address

Check a specific property to see whether hail activity from the December 15, 2021 Mason City, IA event — or another recent hail event — may have been mapped at that address.

A Participating Local Pro

Find a roof or exterior pro serving the Mason City, IA region who can help you understand what the property hail signal may mean.

Remote Hail Inspection

A participating local pro reviews property-level hail history remotely — not just the December 15, 2021 event — to help decide whether an on-site inspection may be worth scheduling.

A free Hail Report by Address and a Remote Hail Inspection can help you look beyond the December 15, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Mason City, IA region, but they can help you make a more informed next decision before anyone climbs on the roof.

FAQ

Frequently Asked Questions

Common questions about the December 15, 2021 Mason City, IA hail event.

How big was the hail in Mason City, IA on December 15, 2021?
Mapped hail estimates reached up to 0.75" in the Mason City, IA area on December 15, 2021.
How accurate is this Mason City, IA hail map?
This hail map is based on mapped hail estimates, with public storm report context shown where available. It helps show where stronger hail may have occurred during the December 15, 2021 storm event, but it does not confirm property damage at any one address.
What does the Event Inspection Score of Low mean?
For this Mason City, IA event, the Event Inspection Score is Low. The score reflects how strong the hail-history signal is and whether a closer roof or exterior review may make sense. A higher score means a stronger signal, not confirmed damage.
How many people were in the Mason City, IA hail area?
An estimated 3,481 people live inside the mapped hail footprint, which covers about 173 square miles. This is an estimate of residents inside the storm area, not a count of people who reported damage.
How many storm reports came from this event?
For the December 15, 2021 Mason City, IA event, public storm report tables currently list 2 hail reports, 37 wind reports, and 0 tornado reports. Public reports are point observations and are not available for every location.
Can I use this Mason City, IA hail map for my business or content?
Yes. This hail map is free to use and share for marketing, print, blogs, content, research, and similar uses as long as attribution is included with a link back to this page. Use the Share button on the map to copy a ready-made credit line. Use is also subject to our Terms of Use.
How often is this hail map updated?
This event map was generated shortly after the storm and was last reviewed on August 27, 2026. It may be updated as additional hail data or public storm reports become available.
My home is in the Mason City, IA area — what should I do?
If your address falls inside a mapped hail band from the December 15, 2021 storm event, check a free Hail Report by Address for an address-level first look. You can also ask a qualified local pro whether a closer roof or exterior review may make sense.
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