Colorado Hail Storm Report, June 1, 2026: Denver, Bennett and Black Forest

A hail-producing storm crossed Colorado on June 1, 2026. The National Weather Service logged 36 hail reports inside Red Hawk’s service area that day, the largest at 2.00 inches. Denver, Bennett and Black Forest took the most reports.

The Colorado hail map — June 1, 2026

Every hail report in Red Hawk’s service area

These are National Weather Service Local Storm Reports — hail an observer found on the ground, not a radar estimate. Times are MDT.

By city: Denver 13 reports, Bennett 5 reports, Black Forest 4 reports, Monument 3 reports, Palmer Lake 2 reports, Aurora 2 reports. A hail report always names the largest stone an observer found, not the average size that fell across every roof.

Why 2.00-inch hail matters to an asphalt roof

Damage scales hard with stone size. A one-inch stone falls at about 41 mph and lands with roughly 1.3 joules of energy. A 1.75 inch stone falls at about 65 mph and lands with roughly 16 joules — about thirteen times the impact. Denver-area elevation adds another 8 to 10 percent to fall speed.

Published impact studies put the onset of functional damage near 1.00 inch for three-tab asphalt shingles, 1.25 inches for architectural shingles, and 2.00 inches for Class 4 impact-rated products. The largest report on this day was 2.00 inches, well past the threshold for every common shingle type.

The damage usually is not visible from the ground. Hail bruises the shingle — fracturing the mat beneath a surface that still looks intact — and the bruised area then sheds its protective granules over the following months. A roof hit in June can look fine all summer and start leaking by winter.

Radar-estimated hail is not measured hail

Radar hail algorithms output a deliberate high-end estimate of what may exist inside a storm cloud, not a measurement of what landed on your roof. Radar estimates characteristically run above what observers actually recover. Treat the shaded swath on the map as the search area and the ground reports as the confirmed observations. If a contractor tells you radar showed three-inch hail at your address, ask whether anyone measured it.

What to do if you were under it

1. Check from the ground, not the roof. Walking a hail-struck roof is how people get hurt.
2. Look in your gutters. Granules washing off in quantity is the most common early sign.
3. Check soft metal. Roof vents, gutters, flashing, the mailbox, AC condenser fins. Dents in soft metal date the storm.
4. Photograph what you find with your phone. Phone photos carry a timestamp. Do not edit them.
5. Get it inspected. Especially if this storm was months ago — that is exactly when bruising starts to surface.

Radar estimate and ground reports by city — June 1, 2026

The map above is the search area. This table asks two narrower questions for each Red Hawk service-area city: did any NWS ground report come from inside the city’s actual boundary, whatever locality name the NWS filed it under; and did a radar-estimated hail band of 1.00 inch or larger cross that boundary? A ground report is an observation and always lists the city. The band is an MRMS estimate, not a measurement.

Radar estimated hail to 2.75 inches over part of Watkins (about 4 percent of it, in its north part); the 1.00 inch band covered about 67 percent of it. On the ground, two National Weather Service hail reports named Watkins (“5 S Watkins”, “1 SE Watkins”), the largest 1.00 inches (reported), but the report points lie outside the city boundary.

Radar estimated hail to 2.50 inches over part of Aurora (less than 1 percent of it, in its east part); the 1.00 inch band covered about 20 percent of it. On the ground, four National Weather Service hail reports came from inside the Aurora city limits, the largest 1.25 inches (reported). Two of them were logged by the NWS under the locality names “5 S Watkins” and “4 E Buckley AFB”. One of them (“5 S Watkins”) plots within 0.5 miles of the Aurora boundary (see the note below).

Radar estimated hail to 2.00 inches over part of Bennett (less than 1 percent of it, in its northeast part); the 1.00 inch band covered about 44 percent of it. On the ground, five National Weather Service hail reports came from inside the Bennett city limits, the largest 2.00 inches (reported).

Radar estimated hail to 2.00 inches over part of Denver (less than 1 percent of it, in its west part); the 1.00 inch band covered about 16 percent of it. On the ground, 14 National Weather Service hail reports came from inside the Denver city limits, the largest 1.75 inches (measured). One of them was logged by the NWS under the locality name “1 E Edgewater”.

Radar estimated hail to 1.50 inches over part of the Park Hill neighborhood of Denver (about 10 percent of it, in its north part); the 1.00 inch band covered about 78 percent of it. On the ground, two National Weather Service hail reports came from inside the Park Hill neighborhood, the largest 1.75 inches (measured). Both were logged by the NWS under the locality name “4 E Denver”. One of them (“4 E Denver”) plots within 0.5 miles of the Park Hill boundary (see the note below).

Radar estimated hail to 1.00 inch over part of the Montbello neighborhood of Denver (about 54 percent of it, in its west part). No ground observer reported from the Montbello neighborhood of Denver that day — reports come from where people happen to be, and their absence is not evidence that nothing fell.

Radar estimated hail to 1.00 inch over part of the Central Park neighborhood of Denver (about 46 percent of it, in its southwest part). No ground observer reported from the Central Park neighborhood of Denver that day — reports come from where people happen to be, and their absence is not evidence that nothing fell.

Radar estimated hail to 1.00 inch over part of the Green Valley Ranch neighborhood of Denver (about 39 percent of it, in its east part). No ground observer reported from the Green Valley Ranch neighborhood of Denver that day — reports come from where people happen to be, and their absence is not evidence that nothing fell.

Radar estimated hail to 1.00 inch over part of Colorado Springs (less than 1 percent of it, in its north part). On the ground, four National Weather Service hail reports came from inside the Colorado Springs city limits, the largest 1.00 inch (measured). All four were logged by the NWS under the locality names “5 SW Black Forest”, “3 SW Black Forest”, “4 SW Black Forest” and “6 SW Black Forest”. One of them (“3 SW Black Forest”) plots within 0.5 miles of the Colorado Springs boundary (see the note below).

On the ground, one National Weather Service hail report came from inside the Highlands Ranch city limits: 1.50 inches (reported). That report was logged by the NWS under the locality name “2 SE Chatfield Reservoi”. Radar placed only the 0.50 inch band over part of Highlands Ranch (about 40 percent of it, in its southwest part), an estimate below the size reported on the ground.

On the ground, one National Weather Service hail report came from inside the Parker city limits: 0.88 inches (measured). Radar placed only the 0.50 inch band over part of Parker (about 11 percent of it, in its east part), an estimate below the size reported on the ground.

On the ground, one National Weather Service hail report came from inside the Falcon area (ZIP 80831): 1.00 inch (measured). Radar placed only the 0.50 inch band over part of the Falcon area (ZIP 80831) (about 6 percent of it, in its north part), an estimate below the size reported on the ground.

On the ground, two National Weather Service hail reports came from inside the Palmer Lake city limits, the largest 1.50 inches (measured). One of them was logged by the NWS under the locality name “Monument”. One more report naming Palmer Lake (“1 E Palmer Lake”) came from outside that boundary. One of them (“Monument”) plots within 0.5 miles of the Palmer Lake boundary (see the note below). Radar placed only the 0.50 inch band over part of Palmer Lake (less than 1 percent of it, in its southeast part), an estimate below the size reported on the ground.

Where a report is marked above, its point plots within 0.5 miles of the city line it was placed across. An NWS report position is not surveyed: it is quoted to two decimal places and is derived from a whole-mile distance on a 16-point compass, so a point that close to a line cannot be resolved to one side of it. Those reports are still listed, because they are the National Weather Service record; only the city they are credited to is left open. City boundaries are the U.S. Census Bureau TIGER/Line 2025 place limits; Denver neighborhoods use the City and County of Denver’s statistical neighborhood polygons. A city is listed if any NWS ground report came from inside that boundary, or if a 1.00 inch or larger radar band crosses it; a ground report is never left off for the size of the radar estimate. Entries marked ZIP area have no legal boundary of their own and are matched on the Census ZIP Code Tabulation Area, which is approximate and is never a city limit. The 0.50 inch band also crossed 15 other service-area cities with no ground report inside them; those are not listed because hail under one inch rarely damages asphalt shingles and a radar band that small is an estimate below that threshold. A band at or above 1.00 inch also clipped the edge of 3 further service-area cities without a ground report inside them, by less than one radar grid cell of area. Those are not listed: MRMS is gridded at about one kilometre and the swath it draws is displaced from where the stones landed, so an overlap that small does not establish that hail fell in the city. Bands over cities more than 10 miles from this storm’s own reports belong to other storms on the same day and are not listed here.

Hail duration, warnings and wind

The same system produced 5 Colorado wind reports that day, the strongest 64 mph at 4 ENE Wauneta. Wind damage and hail damage look different on a roof and are assessed separately.

CoCoRaHS volunteer observers logged 12 Colorado hail observations on this date, the longest running 20 minutes at Aurora 8.5 NNE. That network records how long hail fell and what it damaged, which NWS storm reports do not capture.

Frequently asked questions

Red Hawk tracks every hail day across the Front Range. See our other storm reports for the rest of the 2026 season.

City-by-city reports and hail histories

• Denver hail storm report, June 1, 2026
• Denver roofing & hail history
• Bennett hail storm report, June 1, 2026
• Bennett roofing & hail history
• Black Forest hail storm report, June 1, 2026
• Black Forest roofing & hail history
• Monument hail storm report, June 1, 2026
• Monument roofing & hail history

Not sure what to look for? Start with what hail damage looks like on a roof and the Colorado hail claim guide.

Storm figures are National Weather Service Local Storm Reports for Colorado on June 1, 2026, retrieved from the Iowa Environmental Mesonet archive and de-duplicated. Radar swath analysis by ExoVzn, an independent forensic meteorology firm, using NOAA MRMS data. Impact-energy and damage-threshold figures are from published hail impact research. Storm reports indicate where hail occurred; only a physical inspection establishes whether a specific roof was damaged.