Hail history for Pondera County, MT

Pondera County has 76 recorded hail events in the NOAA Storm Events Database — 60 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on August 13, 1991.

Records 1950–present Data through April 2026 Peak month June

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 76 since 1956

1″ or larger 60 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 4.5″ grapefruit · August 13, 1991

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 Pondera County

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

Most recent recorded events

Latest 8 of 76 recorded events · data through April 2026
Date	Size	Comparable to
June 21, 2024	1.75″	Golf ball
June 21, 2024	1.75″	Golf ball
July 7, 2022	1.0″	Quarter
June 14, 2019	1.5″	Ping-pong ball
June 14, 2019	1.0″	Quarter
June 14, 2019	1.75″	Golf ball
June 14, 2019	1.75″	Golf ball
June 8, 2017	1.0″	Quarter

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

From the storm reports

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

June 21, 2024 · 1.75″ (golf ball)

Golf ball sized hail was reported by the public on the s curve east of Brady on Brady rd.

July 19, 2010 · 2.0″ (hen egg)

A thunderstorm dropped 2 inch diameter hail at Conrad 7N.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	5	3	6	17	20	21	3

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 Pondera County

Has it ever hailed in Pondera County?

Yes — 76 hail events have been recorded for Pondera County, MT in the NOAA Storm Events Database since 1956, including 60 of 1″ (quarter size) or larger.

When did it last hail in Pondera County?

The most recent recorded hail event for Pondera County, MT is June 21, 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 Pondera County?

4.5″ (grapefruit), recorded on August 13, 1991. 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.