How Hail Is Measured

news image
Top Stories
26 Mar 2018 3:54 PM
How big are hailstones?  That definitely can depend on where you live and how strong an updraft the storm has that produces them! The best way to find out how large the hail might be that fell in your yard is to take an actual measurement. Depending on what the diameter is in inches will determine the size. The chart below, as provided by the Storm Prediction Center, shows how hail is typically measured.
 

HAIL SIZE (in.)

 

OBJECT ANALOG REPORTED

.50

Marble, moth ball

.75

Penny

.88

Nickel

1.00

Quarter

1.25

Half dollar

1.50

Walnut, ping pong

1.75

Golf ball

2.00

Hen egg

2.50

Tennis ball

2.75

Baseball

3.00

Tea cup

4.00

Softball

4.50

Grapefruit

The biggest hailstone ever measured was a whopper, and fell in South Dakota in 2010! https://twitter.com/NWSDesMoines/status/978368351843110913 If you have any videos or photos of hail, make sure to share them with us on our Facebook or Twitter pages! For WeatherNation, I'm Meteorologist Meredith Garofalo
All Weather News
More
East Coast Snow.... What We Know About the Late Week System

East Coast Snow.... What We Know About the Late Week System

What We KnowA larger trough will help several

11 Nov 2026 2:20 PM
Tropics Update: Pena Spinning in the Pacific

Tropics Update: Pena Spinning in the Pacific

Hurricane season isn’t over yet. The National

11 Nov 2026 12:50 PM
Lake Effect Machine May Fire Up Midweek

Lake Effect Machine May Fire Up Midweek

We've got a party getting started in the midw

11 Nov 2026 12:45 PM
Wet Pattern Targets West Coast This Weekend Bringing Snow & Rain

Wet Pattern Targets West Coast This Weekend Bringing Snow & Rain

It has been active for portions of the West t

11 Nov 2026 12:35 PM
Severe Threat Rolls Returns to the Ohio Valley

Severe Threat Rolls Returns to the Ohio Valley

An interesting setup is rolling through the M

11 Nov 2026 12:20 PM
Texas Flood Threat To Start The Week

Texas Flood Threat To Start The Week

Rain is tapering off after the heavy totals t

9 Nov 2026 10:55 PM
Heavy Rain Brings Flooding Concerns to Northeast as Storm System Moves East

Heavy Rain Brings Flooding Concerns to Northeast as Storm System Moves East

The same system that has produced unsettled w

7 Nov 2026 10:00 PM