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 452 hail storms within 25 miles of Southglenn, CO. Of those, 360 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. 2023 was the most active year on record locally, with 182 documented hail events.
Check Hail History for a Specific Address in Southglenn| Severity | Count | What it means for roofs |
|---|---|---|
| Destructive | 12 events | Egg-size, expect mat fractures and gutter damage |
| Severe | 87 events | Ping pong-size, granule loss and bruising common |
| Significant | 261 events | Quarter-size, the standard insurance damage threshold |
| Moderate | 92 events | Marble-size, possible cosmetic damage |
| Year | Reported Hail Events Within 25 mi |
|---|---|
| 2026 | 137 events |
| 2025 | 38 events |
| 2024 | 91 events |
| 2023 | 182 events |
| 2022 | 4 events |
2023 was the busiest hail year on record locally for Southglenn, with 182 documented events inside the 25-mile radius. Storm activity in Southglenn typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.
| Date | Location | Severity | Size | NOAA Comments |
|---|---|---|---|---|
| 2026-08-27 | 2 NE Lakewood, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-27 | 2 NE Wheat Ridge, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-27 | 3 NE Foxfield, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-26 | 2 NW Castle Pines, CO | Significant | 1.25" | — |
| 2026-08-26 | 1 NW Castle Pines, CO | Significant | 1.25" | — |
| 2026-08-26 | 2 ESE Castle Pines, CO | Significant | 1.25" | Time estimated from radar. |
| 2026-08-26 | 2 SW The Pinery, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-26 | 1 ESE Castle Pines, CO | Significant | 1.00" | — |
| 2026-08-26 | 3 W Parker, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-26 | 5 SSE Arapahoe Park, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-26 | 5 SSE Arapahoe Park, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-26 | 2 N Castle Pines, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-26 | 3 NW Parker, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-22 | 2 S Arapahoe Park, CO | Significant | 1.00" | Report from mPING: Quarter (1.00 in.). |
| 2026-08-22 | 5 SSE Watkins, CO | Significant | 1.00" | Time estimated from radar. |
| 2026-08-22 | 6 SSE Watkins, CO | Severe | 1.50" | — |
| 2026-08-16 | 2 W Ponderosa Park, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-15 | 2 SSW Foxfield, CO | Severe | 1.75" | Some hail of up to golf ball size. |
| 2026-08-14 | 3 N Englewood, CO | Moderate | 0.75" | Report from mPING: Dime (0.75 in.). |
| 2026-08-14 | Englewood, CO | Significant | 1.00" | — |
NOAA has recorded 91 high-wind events within 25 miles of Southglenn, CO in the past five years. Of those, 89 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 83 mph.
| Severity | Count |
|---|---|
| Severe | 34 events |
| Significant | 55 events |
| Moderate | 2 events |
| Date | Location | Gust (mph) | Severity | NOAA Comments |
|---|---|---|---|---|
| 2026-08-30 | 3 SW Rocky Flats, CO | 60 | Significant | — |
| 2026-08-29 | 3 NE Lone Tree, CO | 45 | Moderate | Corrects previous tstm wnd gst report from 3 NE Lone Tree. ASOS station KAPA 2 SSE Centennial. Wind sensor failure. Therefore, previous report of 58 mph was deemed erroneous. |
| 2026-08-27 | 2 NW Wheat Ridge, CO | 58 | Significant | Personal weather station. |
| 2026-08-22 | 6 S Manila Village, CO | 60 | Significant | Weather Station XL131. |
| 2026-08-22 | 5 S Watkins, CO | 67 | Severe | Weather station XL418. |
| 2026-08-22 | 4 S Watkins, CO | 58 | Significant | — |
| 2026-08-22 | 6 SSE Watkins, CO | 70 | Severe | Time estimated from radar. |
| 2026-08-15 | 3 NE Lone Tree, CO | 64 | Severe | AWOS station KAPA 2 SSE Centennial. |
| 2026-08-14 | 2 W Elizabeth, CO | 62 | Significant | Personal weather station. |
| 2026-07-28 | 5 SSE Watkins, CO | 66 | Severe | — |
| 2026-07-28 | 6 S Manila Village, CO | 61 | Significant | Personal weather station. |
| 2026-07-28 | 10 E Arapahoe Park, CO | 58 | Significant | Mesonet station AV686 Bennett. |
| 2026-07-24 | 4 SSW Rocky Flats, CO | 61 | Significant | Mesonet station TT867 Arvada. |
| 2026-07-24 | 3 SW Rocky Flats, CO | 70 | Severe | Mesonet station CO109 Rocky Flats Hwy 93 and 72. |
| 2026-07-24 | 3 NNE White Ranch Open, CO | 61 | Significant | Mesonet station UP709 Clayws. |
| 2026-07-22 | 2 SE Denver Intl Airpor, CO | 62 | Significant | Corrects previous non-tstm wnd gst report from 2 SE Denver Intl Airport. ASOS station KDEN Denver Intl Airport. |
| 2026-07-10 | 2 SE Denver Intl Airpor, CO | 73 | Severe | — |
| 2026-07-06 | 1 N Buckley AFB, CO | 60 | Significant | AWOS station KBKF Buckley SFB. |
| 2026-06-26 | 2 SE Denver Intl Airpor, CO | 59 | Significant | ASOS station KDEN Denver Intl Airport. |
| 2026-06-08 | 2 SE Denver Intl Airpor, CO | 59 | Significant | ASOS station KDEN Denver Intl Airport. |
The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Southglenn was on August 27, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.
Southglenn averages roughly 90 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 360 of the 452 events recorded over the last five years.
The largest documented hail near Southglenn in the last five years was egg-sized. Most Southglenn-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.
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.
Use the HailCheck address search to enter any street address in or near Southglenn. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.
If your property in or near Southglenn 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.
Learn About $99 HAAG-Style ValidationSouthglenn 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.