Boulder, CO hail history
Radar and ground reports show 7 days of one-inch-or-larger hail over Boulder (Boulder County) since 2022 (2 in 2022, 3 in 2023, 2 in 2025). The most recent was June 17, 2025; the largest radar estimate was 1.75" (golf ball size) on July 27, 2022.
- June 17, 2025radar up to 1.25" (half dollar size)
- May 18, 2025radar up to 1" (quarter size) · 2 reports
- July 28, 2023radar up to 1.25" (half dollar size)
- June 21, 2023ground reports · 1 report
- June 12, 2023radar up to 1.5" (ping-pong ball size) · 1 report
- October 1, 2022radar up to 1.25" (half dollar size)
- July 27, 2022radar up to 1.75" (golf ball size)
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.
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.