Hail in Frederick, CO on May 31, 2023
Radar-estimated up to 1.25" (half dollar size)
Weather radar estimated hail of up to 1.25" (half dollar size) over Frederick between 3:34 PM and 3:43 PM, from 8 separate radar hail signatures inside the town. No spotter or NOAA ground report was filed inside the town that day, which is common: most hail falls where nobody is measuring it.
What half dollar-size hail does to a roof
Hail in this range commonly bruises asphalt shingles and knocks off the protective granules. The roof may look fine from the street and still have lost years of life; soft metals like vents and gutters usually show the dents first. Radar describes the storm, not your shingles: the only way to know what a particular roof took is an inspection. Most homeowner policies set a deadline for reporting storm damage, so check your policy.
Every home inside a storm's radar footprint, scored by roof age, material and hail history, sold to a few roofers only so you are not the twentieth truck on the street.
Other Colorado towns hit on May 31
- Commerce City, CO · May 31, 2023radar up to 2" (hen egg size)
- Thornton, CO · May 31, 2023radar up to 1.75" (golf ball size)
- Federal Heights, CO · May 31, 2023radar up to 1.5" (ping-pong ball size)
- Northglenn, CO · May 31, 2023radar up to 1.5" (ping-pong ball size)
- Westminster, CO · May 31, 2023radar up to 1.5" (ping-pong ball size)
- Dacono, CO · May 31, 2023radar up to 1.25" (half dollar size)
- Denver, CO · May 31, 2023radar up to 1.25" (half dollar size)
- Firestone, CO · May 31, 2023radar up to 1.25" (half dollar size)
- Mead, CO · May 31, 2023radar up to 1.25" (half dollar size)
Other hail days in Frederick
- June 25, 2025radar up to 1.25" (half dollar size) · 2 reports
- June 17, 2025radar up to 2" (hen egg size)
- May 14, 2025ground reports · 1 report
- July 20, 2024radar up to 1.75" (golf ball size) · 2 reports
- May 30, 2024radar up to 1.5" (ping-pong ball size)
- May 27, 2023radar up to 1" (quarter size)
- May 26, 2023radar up to 1" (quarter size) · 1 report
- May 25, 2023radar up to 1" (quarter size)
Radar sizes are estimates from NEXRAD hail signatures (NOAA Severe Weather Data Inventory) for the largest stones in a storm cell, not a measurement at any one home. Ground reports are National Weather Service local storm reports and the NOAA Storm Events Database, as filed. Town-level data only; this page shows no addresses and no homeowner information.