Louisville Hail — Storm History & NOAA Data for Louisville, CO

Data current as of 2026-10-16 · Sourced from NOAA Storm Events

Over the past five years, the National Oceanic and Atmospheric Administration has recorded 351 hail storms within 25 miles of Louisville, CO. Of those, 264 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was egg-sized, which can fracture shingle mat and dent metal flashing on contact. 2026 was the most active year on record locally, with 100 documented hail events.

Hail Severity Breakdown — Louisville Area (Last 5 Years)

Louisville Hail Storms by Year

2026 was the busiest hail year on record locally for Louisville, with 100 documented events inside the 25-mile radius. Storm activity in Louisville typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.

Notable Recent Louisville Hail Storms

• August 22, 2026 — Significant hail (quarter-sized or larger) reported near Brighton. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Louisville-area properties.
• August 22, 2026 — Significant hail (quarter-sized or larger) reported near 1 SE Brighton. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Louisville-area properties.
• August 22, 2026 — Significant hail (quarter-sized or larger) reported near 1 W Fort Lupton. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Louisville-area properties.
• August 14, 2026 — Significant hail (quarter-sized or larger) reported near Englewood. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Louisville-area properties.
• June 26, 2026 — Significant hail (quarter-sized or larger) reported near Westminster. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Louisville-area properties.

Recent Hail Events Near Louisville

Wind Storm History — Louisville Area (Last 5 Years)

NOAA has recorded 46 high-wind events within 25 miles of Louisville, CO in the past five years. Of those, 45 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 70 mph.

Recent Wind Events Near Louisville

Frequently Asked Questions About Louisville Hail

When was the last major hail storm in Louisville, CO?

The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Louisville was on August 22, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.

How often does it hail in Louisville?

Louisville averages roughly 70 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 264 of the 351 events recorded over the last five years.

How big does hail typically get in Louisville?

The largest documented hail near Louisville in the last five years was egg-sized. Most Louisville-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.

Does my insurance cover hail damage in CO?

Most homeowners insurance policies in CO cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.

How do I check hail history for a specific Louisville address?

Use the HailCheck address search to enter any street address in or near Louisville. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.

What a HAAG-Style Test Square Validation Means in Louisville

If your property in or near Louisville took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.

HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.

Why Louisville's Location Matters for Hail

Louisville sits inside the central United States hail belt, where warm Gulf moisture collides with cold continental air to produce supercell thunderstorms capable of dropping the hail documented above. Properties in this zone typically see at least one significant hail event every two to four years.

Other Cities in CO

• Denver, CO
• Colorado Springs, CO
• Aurora, CO
• Fort Collins, CO
• Lakewood, CO
• Thornton, CO
• Arvada, CO
• Westminster, CO
• Pueblo, CO
• Centennial, CO
• Greeley, CO
• Boulder, CO
• Highlands Ranch, CO
• Longmont, CO
• Loveland, CO
• Broomfield, CO
• Grand Junction, CO
• Castle Rock, CO
• Commerce City, CO
• Parker, CO
• Littleton, CO
• Southglenn, CO
• Northglenn, CO
• Brighton, CO
• Dakota Ridge, CO
• Englewood, CO
• Security-Widefield, CO
• Windsor, CO
• Ken Caryl, CO
• Wheat Ridge, CO