Stillwater Hail — Storm History & NOAA Data for Stillwater, OK

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 98 hail storms within 25 miles of Stillwater, OK. Of those, 78 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 baseball-sized or larger, which can fracture shingle mat and dent metal flashing on contact. 2026 was the most active year on record locally, with 31 documented hail events.

Hail Severity Breakdown — Stillwater Area (Last 5 Years)

Stillwater Hail Storms by Year

2026 was the busiest hail year on record locally for Stillwater, with 31 documented events inside the 25-mile radius. Storm activity in Stillwater 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 Stillwater Hail Storms

• July 5, 2026 — Significant hail (quarter-sized or larger) reported near 4 WSW Lake Carl Blackwe. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Stillwater-area properties.
• June 27, 2026 — Significant hail (quarter-sized or larger) reported near 4 E Guthrie. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Stillwater-area properties.
• June 26, 2026 — Significant hail (quarter-sized or larger) reported near GUTHRIE. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Stillwater-area properties.
• May 8, 2026 — Significant hail (quarter-sized or larger) reported near 3 W Langston. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Stillwater-area properties.
• May 8, 2026 — Significant hail (quarter-sized or larger) reported near CARNEY. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Stillwater-area properties.

Recent Hail Events Near Stillwater

Wind Storm History — Stillwater Area (Last 5 Years)

NOAA has recorded 106 high-wind events within 25 miles of Stillwater, OK in the past five years. Of those, 106 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 98 mph.

Recent Wind Events Near Stillwater

Frequently Asked Questions About Stillwater Hail

When was the last major hail storm in Stillwater, OK?

The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Stillwater was on July 5, 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 Stillwater?

Stillwater averages roughly 20 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 78 of the 98 events recorded over the last five years.

How big does hail typically get in Stillwater?

The largest documented hail near Stillwater in the last five years was baseball-sized or larger. Most Stillwater-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 OK?

Most homeowners insurance policies in OK 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 Stillwater address?

Use the HailCheck address search to enter any street address in or near Stillwater. 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 Stillwater

If your property in or near Stillwater 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 Stillwater's Location Matters for Hail

Stillwater 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.

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