Hail history for Roosevelt County, MT

Roosevelt County has 247 recorded hail events in the NOAA Storm Events Database — 160 of them 1″ or larger and 12 at 2″ or larger. The largest on record: 3.5″ (softball) on June 18, 2016.

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 247 since 1959

1″ or larger 160 NWS severe threshold

2″ or larger 12 hen egg class and up

Largest recorded 3.5″ softball · June 18, 2016

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 Roosevelt County

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

Most recent recorded events

Latest 8 of 247 recorded events · data through April 2026
Date	Size	Comparable to
June 26, 2025	1.0″	Quarter
September 17, 2024	1.25″	Half dollar
August 24, 2024	1.0″	Quarter
July 12, 2024	1.75″	Golf ball
June 23, 2024	1.0″	Quarter
July 30, 2023	1.0″	Quarter
July 22, 2023	1.5″	Ping-pong ball
July 11, 2023	1.75″	Golf ball

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

From the storm reports

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

June 26, 2025 · 1.0″ (quarter)

A trained spotter reported pea to quarter size hail.

June 18, 2016 · 3.5″ (softball)

Public reported near grapefruit sized hail, measuring 3.5 inches in diameter.

August 1, 2010 · 3.0″ (tea cup)

Public report in a newspaper clipping of 2.5 to 3 inch hail occurred at 1310 MST. At 1312 MST 2 miles NNE of Froid, nickel size hail fell. Spotter reported 1.5 inch hail 2 miles NNE of Froid at 1315 MST. At 1320 MST Froid 1.00 to 1.75 inch hail fell mixed with 60 mph winds, denting a camper.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	8	0	3	57	74	81	23

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 Roosevelt County

Has it ever hailed in Roosevelt County?

Yes — 247 hail events have been recorded for Roosevelt County, MT in the NOAA Storm Events Database since 1959, including 160 of 1″ (quarter size) or larger.

When did it last hail in Roosevelt County?

The most recent recorded hail event for Roosevelt County, MT is June 26, 2025, with 1.0″ (quarter) 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 Roosevelt County?

3.5″ (softball), recorded on June 18, 2016. 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.