HailEvidence → hail history by county → Montana → Stillwater County
Hail dates in Stillwater County, Montana
The National Weather Service has recorded hail in Stillwater County on 30 days since 2016 (54 separate reports, 45 of them quarter-size or larger). The largest stone on record was 2.75" (baseball) on August 11, 2019; the most recent hail was August 7, 2025. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Stillwater County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2025-08-07 | 1.75" (golf ball) | 1 | Large hail lasted 10 minutes. |
| 2025-06-13 | 1.75" (golf ball) | 4 | Report from mping. |
| 2024-08-06 | 1.00" (quarter) | 1 | — |
| 2023-08-06 | 1.50" (ping pong ball) | 1 | The time was estimated. Some damage to decking and a few dents to vehicles was noted. |
| 2022-07-24 | 1.00" (quarter) | 1 | — |
| 2022-07-15 | 1.00" (quarter) | 1 | — |
| 2022-07-05 | 1.00" (quarter) | 1 | — |
| 2022-07-03 | 1.75" (golf ball) | 2 | — |
| 2021-06-10 | 0.88" (nickel) | 1 | — |
| 2020-07-09 | 0.88" (nickel) | 1 | — |
| 2020-07-05 | 0.75" (penny) | 1 | — |
| 2020-05-19 | 1.25" (half dollar) | 2 | — |
| 2019-08-11 | 2.75" (baseball) | 4 | Car windshields were broken along with four house windows. |
| 2019-07-14 | 1.25" (half dollar) | 2 | — |
| 2019-07-13 | 1.00" (quarter) | 1 | — |
| 2019-07-11 | 1.00" (quarter) | 1 | — |
| 2019-07-06 | 1.00" (quarter) | 1 | — |
| 2019-06-30 | 1.00" (quarter) | 1 | — |
| 2019-05-26 | 1.50" (ping pong ball) | 1 | — |
| 2018-07-28 | 1.25" (half dollar) | 2 | — |
| 2018-07-27 | 2.00" (hen egg) | 4 | Large hail combined with strong winds resulted in significant crop damage. |
| 2018-07-26 | 1.75" (golf ball) | 4 | Trees were stripped of leaves and small branches. |
| 2018-07-02 | 1.00" (quarter) | 3 | — |
| 2018-06-26 | 1.00" (quarter) | 2 | — |
| 2018-05-26 | 1.00" (quarter) | 1 | — |
| 2018-05-22 | 1.00" (quarter) | 1 | — |
| 2018-05-09 | 1.25" (half dollar) | 3 | — |
| 2017-05-07 | 1.00" (quarter) | 1 | — |
| 2016-07-15 | 1.00" (quarter) | 2 | — |
| 2016-05-21 | 1.00" (quarter) | 3 | — |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2025 | 2 | 5 | 1.75" (golf ball) |
| 2024 | 1 | 1 | 1.00" (quarter) |
| 2023 | 1 | 1 | 1.50" (ping pong ball) |
| 2022 | 4 | 5 | 1.75" (golf ball) |
| 2021 | 1 | 1 | 0.88" (nickel) |
| 2020 | 3 | 4 | 1.25" (half dollar) |
| 2019 | 7 | 11 | 2.75" (baseball) |
| 2018 | 8 | 20 | 2.00" (hen egg) |
| 2017 | 1 | 1 | 1.00" (quarter) |
| 2016 | 2 | 5 | 1.00" (quarter) |
Damaging wind in Stillwater County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 28 reports since 2016, strongest 68 mph. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2018-07-21 | 68 mph | 1 | — |
| 2024-09-03 | 66 mph | 1 | — |
| 2022-07-13 | 64 mph | 1 | — |
| 2023-08-30 | 63 mph | 3 | — |
| 2022-09-07 | 63 mph | 1 | — |
| 2022-08-27 | 63 mph | 1 | — |
| 2026-05-13 | 62 mph | 2 | Mesonet station FSLM8 Fishtail gusted to 62 mph. |
| 2018-08-02 | 61 mph | 3 | — |
Was hail recorded at your Stillwater County address? Check free
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Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
Need it in writing for a claim?
The verification report lists every NWS hail (and, in the extended version, wind and tornado) record within 1, 3 and 10 miles of one address, each linked to its official source, with the disputed date called out in plain English. Adjusters can verify every line.
10-year hail history for one address + the disputed-date finding.
15-year window, wind & tornado records, plus a drafted claim-appeal letter.
Questions
What date did hail last hit Stillwater County?
August 7, 2025, per the NWS Storm Events record. The largest since 2016 was 2.75" (baseball) on August 11, 2019.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Carbon County, MT (26 mi) · Sweet Grass County, MT (29 mi) · Yellowstone County, MT (43 mi) · Golden Valley County, MT (48 mi) · Wheatland County, MT (55 mi) · Musselshell County, MT (69 mi) · Gallatin County, MT (83 mi) · Big Horn County, MT (93 mi)
See also: Montana hail history by city · all counties