Hail Reports in Longmont, Colorado — Last 90 Days

Hail near Longmont in the last 90 days

• 1.00 inLargest hail in 90 days (quarter size)
• 2Hail days near Longmont
• 2SPC reports
• August 22, 2026Most recent event

Around Longmont, the NOAA Storm Prediction Center logged 2 hail reports within 25 miles between July 28 and August 22, 2026, spread over 2 storm days. Both days brought stones of 1″ or more, and 1 of the 2 Longmont reports with coordinates fell within 10 miles of the city center. In a typical year Longmont sees about 7 hail-producing storms, which is why insurers price separate wind-and-hail deductibles in this market.

Longmont's storm-climate context

Longmont sits in a cold semi-arid climate at the Colorado Front Range with 32.2 inches of average annual snowfall and 15.21 inches of total precipitation. The record high reached 106 F on July 7, 1973, and again on June 27, 1994, while the record low plunged to -38 F on January 16, 1930. Temperature swings of that magnitude drive severe expansion-contraction cycling in shingles and sealants. Front Range storms regularly produce large hail from late spring through summer, stripping granules and denting metal panels. Heavy snowpack loads test low-pitch roof structures each winter, and UV intensity at elevation accelerates membrane degradation faster than at sea level.

Longmont had 98,885 residents per the 2020 census with a median household income near $90,000, signaling a relatively affluent market capable of supporting quality reroofing projects. The top 2020 employer is St. Vrain Valley Schools at 3,543 workers, followed by the City of Longmont at 1,625 and Seagate Technology at 1,430. The manufacturing and technology employment base sustains steady commercial roofing demand alongside residential. Colorado hail season combined with Front Range growth keeps both insurance-claim and elective replacement pipelines active for local contractors.

How close the hail came

Of the 2 Longmont reports, the closest landed 9.9 miles from the city center on July 28, 2026 (1.00″ at Lyons). August 22, 2026 was the heaviest day around Longmont, with 1 report and a top stone of 1.00″. Stones of 1″ or more came on 2 of the 2 Longmont-area hail days.

Distances are straight-line from the city center to each SPC report point; reports without coordinates are left out of the table.

Hail events near Longmont by date

The Longmont tables above list preliminary Local Storm Reports from the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after each event. A quiet log does not mean no hail: small or unreported events happen. The closest report in this window landed 9.9 miles from Longmont's center.

On the Longmont map, circle positions are the NOAA SPC report coordinates; tap a circle for the date and hail size.

Hail size: < 1″ 1–1.75″ ≥ 2″ not recorded

How severe was it? The NWS yardstick, applied to Longmont's reports

Hail history in Longmont: the long picture

County-level NOAA records for the county behind Longmont, 2014–June 2026. Each figure shows its source. Storms after the archive ends are not in these numbers. Ranks count from 1, the highest.

Longmont against the 209 cities we cover

• #59of 209Days with hail 1 in or larger in Longmont: middle
• #102of 209Days with hail 1.75 in or larger (golf ball) in Longmont: middle
• #204of 209Days with 58+ mph thunderstorm wind in Longmont: bottom quarter
• #187of 209Tornadoes in Longmont: bottom quarter
• #203of 209Reported storm property damage in Longmont: bottom quarter
• #163of 209Share of homes built before 1980 in Longmont: bottom quarter

For Longmont's county, NOAA records a most severe stone of 3.00″ and 130 hail events since 2017, close to 14 every year. Set against that baseline, the 2 hail days near Longmont in the 90-day window above run below the long-term average rate. Check your own Longmont address on the hail risk lookup.

Longmont's county logged fewer hail events than the Colorado median (144 per county since 2017), below the state's typical pace.

Three ways a storm reaches a roof

2018 was the standout hail year in Longmont's county on both counts: the most recorded events (45) and the largest stone (3.00″).

In a market with repeat hail, impact-resistant Class 4 shingles often pay for themselves through insurer premium discounts — worth discussing with a Longmont roofer if a recent event tips you into a replacement.

Boulder County fact sheet for Longmont homeowners

Housing age, federal disaster declarations and your state's claim deadlines in one place. All three come from public records, county level.

What to do if your roof was in the hail path

1. Stay off the roof and read the yard instead. 9.9 miles from the Longmont city center (Lyons, July 28, 2026) is where the nearest report fell in the last 90 days. Look at your Longmont downspouts for granules and at gutters, vents and screens for dents.
2. Record the damage before anyone repairs it. The log's worst day near Longmont: August 22, 2026, 1 report, largest 1.00 in. Pair that date with your dated photos and a coin-for-scale shot to pin the loss to a storm.
3. Crews from outside town will canvass; slow down. With 2 of the 2 hail days at 1 inch or more around Longmont, canvassers arrive fast. A contract or Assignment of Benefits signed at a Longmont door is a risk; a written scope from your own roofer is not.
4. File on the policy's clock. Last hail day near Longmont: 64 days ago. Check the policy for your reporting window and file soon, while the log dates are fresh.
5. Bring the written scope to the adjuster. A Longmont estimate stays honest when the adjuster receives your contractor's written scope. Step-by-step: the roof insurance claim guide.

Hail in Longmont — questions homeowners ask

Check your own ZIP in Longmont

The county figures above average over everything inside the county line. For a score tied to your Longmont address, run your ZIP through the hail risk lookup — Longmont ZIP codes include 80514, 80501, 80503, 80502, 80504.

Longmont neighborhoods — hail exposure varies by area

Hail paths track with storm cell movement, not city limits. If you're in East Longmont, Southlands, Longmont Crossing, Prairie View or Westridge, check your specific street against the report locations above — distance from Longmont's center is listed for each report.

More resources

• Roofing contractors in Longmont
• Storm damage repair in Longmont
• Roof repair in Longmont
• Roof inspection in Longmont
• Insurance claim guide
• Roof replacement costs in Longmont
• Emergency roof repair
• All recent hail reports
• Hail risk lookup

Sources: NOAA Storm Prediction Center Local Storm Reports (last 90 days, preliminary) and the NOAA NCEI Storm Events Database (county of the city, 2014–June 2026); U.S. Census Bureau American Community Survey 5-year estimates (housing). The Storm Events archive used here ends in 2025, so storms between that date and the start of the 90-day log are not shown. How we collect data. Are you a roofer in Longmont? See how requests reach contractors.