Hail is measured by comparing it to common objects: pea-size (about a quarter inch), quarter-size (about one inch), golf-ball-size (about 1.75 inches), and up to baseball-size in the most extreme storms. As a general rule, quarter-size hail and larger is where meaningful vehicle body damage starts to show up.
Pea and Dime-Size Hail
Hail under an inch across usually doesn't leave lasting dents in modern sheet metal, though it can still be loud, startling, and occasionally chip a windshield or mirror if the angle is right.
Quarter-Size and Golf-Ball-Size Hail
Once stones reach roughly an inch in diameter, they carry enough impact energy to leave visible dimples in hoods, roofs, trunks, and door panels — especially with any wind pushing the stones at an angle instead of straight down. At 1.5 to 2 inches, damage becomes more severe and widespread, often producing dozens or hundreds of dents across a single vehicle.
It's Not Just Size — Duration and Wind Matter Too
A short, intense burst of large hail can do less total damage than a longer, sustained hailstorm of slightly smaller stones, simply because of how much total impact time the vehicle is exposed to. Wind direction also matters: angled hail hits vertical surfaces like doors and fenders that straight-down hail would miss entirely.
What to Check on Your Vehicle After Any Storm
Regardless of the reported hail size, walk the car in low-angle light (early morning, late afternoon, or a flashlight at dusk) and check the hood, roof, trunk, and door tops — the panels most exposed to a storm coming from above. Small dimples are easy to miss in direct overhead sun.
Have a Question About Your Vehicle?
Pro PDR Auto Hail Repair provides free assessments and handles insurance claims from start to finish. See our full Hail Damage Repair page for more detail, or reach out directly.
Hail Damage Repair Call (281) 906-7696