HailEvidence → hail history by county → Montana → Jefferson County
Hail dates in Jefferson County, Montana
The National Weather Service has recorded hail in Jefferson County on 13 days since 2016 (20 separate reports, 19 of them quarter-size or larger). The largest stone on record was 1.50" (ping pong ball) on August 10, 2019; the most recent hail was July 28, 2025. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Jefferson 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 |
|---|---|---|---|
| 2025-07-28 | 1.00" (quarter) | 1 | Trained spotter reports hail slightly larger than quarter sized. |
| 2023-07-06 | 1.00" (quarter) | 1 | Public reported quarter size hail. |
| 2022-07-24 | 1.00" (quarter) | 1 | Trainer spotter reported hail falling between dime and quarter size. |
| 2022-07-06 | 0.88" (nickel) | 1 | Via spotter report. |
| 2019-08-10 | 1.50" (ping pong ball) | 6 | A trained spotter reports hail up to 1.5 inches in diameter 5 miles NNW of Whitehall at 5:26 PM MST. |
| 2019-07-16 | 1.00" (quarter) | 2 | Trained spotter reports quarter sized hail falling and covering the ground near Cardwell. |
| 2019-07-12 | 1.50" (ping pong ball) | 1 | Trained spotter reported 1.5 inch hail in Whitehall. |
| 2019-06-27 | 1.00" (quarter) | 1 | Second hand report of quarter size hail reported in Clancy by KRTV. |
| 2018-07-27 | 1.00" (quarter) | 1 | Spotter reported quarter-size hail in Whitehall. |
| 2018-05-26 | 1.00" (quarter) | 2 | Spotter reported quarter-size hail 2-miles ESE of Cardwell as a supercell moved overhead. |
| 2017-07-10 | 1.25" (half dollar) | 1 | Resident on Z Bar T Road reported hail smaller than golf balls, but larger than quarters. Damage included tree branches down and dents over the surface of ca… |
| 2017-06-28 | 1.25" (half dollar) | 1 | Spotter reported quarter to half dollar-size hail. |
| 2016-08-07 | 1.00" (quarter) | 1 | A thunderstorm dropped 1 inch diameter hail at Clancy. |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2025 | 1 | 1 | 1.00" (quarter) |
| 2023 | 1 | 1 | 1.00" (quarter) |
| 2022 | 2 | 2 | 1.00" (quarter) |
| 2019 | 4 | 10 | 1.50" (ping pong ball) |
| 2018 | 2 | 3 | 1.00" (quarter) |
| 2017 | 2 | 2 | 1.25" (half dollar) |
| 2016 | 1 | 1 | 1.00" (quarter) |
Damaging wind in Jefferson County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 7 reports since 2016, strongest 62 mph. 1 tornado recorded in the county in the same period. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2024-08-19 | 62 mph | 2 | Public weather station measured a severe caliber gust. |
| 2025-09-14 | 61 mph | 1 | Mesonet station MTBLS Boulder South Mt-69 Mp 27.7 measured a 61 mph wind gust. |
| 2017-07-05 | 60 mph | 1 | KTVM relayed a report of a tree down in the Basin area. The tree landed on a truck and damaged a carport. Time estimated from radar. |
| 2025-07-09 | 58 mph | 1 | Mesonet station MTSPK Spokane Creek Us-287 Mp 55.7 measured a 58 mph wind gust. |
| 2018-06-21 | 58 mph | 1 | Mesonet station in Boulder reported 58-mph peak gust from thunderstorm. |
| 2016-08-07 | 58 mph | 1 | A thunderstorm produced a wind gust to 58 mph at Whitehall 7W (the Homestake Pass DOT site). Also, 1 inch diameter hail was reported at B… |
Was hail recorded at your Jefferson 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 Jefferson County?
July 28, 2025, per the NWS Storm Events record. The largest since 2016 was 1.50" (ping pong ball) on August 10, 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
Gallatin County, MT (58 mi) · Ravalli County, MT (95 mi) · Missoula County, MT (101 mi) · Cascade County, MT (104 mi) · Sweet Grass County, MT (109 mi) · Wheatland County, MT (114 mi) · Judith Basin County, MT (118 mi) · Teton County, MT (124 mi)
See also: Montana hail history by city · all counties