Hail history for Treasure County, MT

Treasure County has 87 recorded hail events in the NOAA Storm Events Database — 59 of them 1″ or larger and 10 at 2″ or larger. The largest on record: 2.75″ (baseball) on July 1, 2010.

Records 1950–present Data through April 2026 Peak month July

Core sample · every recorded event, 1955–2026

Mark size = measured hail diameter; slivers are events with no recorded size. Amber ≥2″, red ≥2.75″ (baseball class). Denser recent decades partly reflect better reporting, not only more storms.

Recorded events 87 since 1967

1″ or larger 59 NWS severe threshold

2″ or larger 10 hen egg class and up

Largest recorded 2.75″ baseball · July 1, 2010

Read the record honestly: Storm Events contains what was reported to the National Weather Service. Sparse or rural counties under-report, and coverage improved sharply after the mid-1990s — a quiet-looking stretch is not proof nothing fell.

When it hails in Treasure County

Recorded events by month, 1950–present. The amber bar marks Treasure County's peak: July.

Most recent recorded events

Latest 8 of 87 recorded events · data through April 2026
Date	Size	Comparable to
June 30, 2024	1.75″	Golf ball
June 30, 2024	1.0″	Quarter
July 6, 2021	1.0″	Quarter
July 6, 2021	1.75″	Golf ball
July 6, 2021	1.75″	Golf ball
July 6, 2020	1.75″	Golf ball
July 6, 2020	1.0″	Quarter
July 6, 2020	2.0″	Hen egg

Looking for a specific storm? Use the did-it-hail date lookup for Treasure County.

From the storm reports

Narratives as filed with the NOAA Storm Events Database (public records; lightly trimmed for length).

June 30, 2024 · 1.0″ (quarter)

Dime to quarter size hail along with very heavy rain was reported.

July 1, 2010 · 2.75″ (baseball)

The hail lasted twelve minutes and ranged from pea to baseball size which resulted in a lot of tree damage.

June 28, 2001 · 2.75″ (baseball)

Heavy damage to homes and vehicles 8 miles southeast of Hysham

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	1	1	0	14	42	20	9

The climb across decades is largely a reporting story: spotter networks, radar, and digital filing pulled far more storms into the record after the 1990s.

Questions about hail in Treasure County

Has it ever hailed in Treasure County?

Yes — 87 hail events have been recorded for Treasure County, MT in the NOAA Storm Events Database since 1967, including 59 of 1″ (quarter size) or larger.

When did it last hail in Treasure County?

The most recent recorded hail event for Treasure County, MT is June 30, 2024, with 1.75″ (golf ball) hail. The database is currently updated through April 2026, so a storm from the last few weeks may not appear yet. To check a specific day, use the did-it-hail date lookup.

What is the largest hail ever recorded in Treasure County?

2.75″ (baseball), recorded on July 1, 2010. Hail that size is destructive-class and typically damages roofs, vehicles, and siding. See how big that really is on the actual-size hail chart.

Does a recorded hail event mean my roof was damaged?

No. This page reports storm records, not damage. Hail size and damage vary block by block within a county, and only an inspection can establish what happened to a specific roof. If you suspect damage, talk to your insurer or a licensed roofer — they can pull the same NOAA records for your claim.

More Montana hail history

All 56 Montana counties, ranked by recorded hail →

Source: NOAA/NCEI Storm Events Database, public domain, updated monthly by NCEI — this site's copy runs through April 2026. HailHistory reports records; it does not give insurance advice or assess damage.