Hail history for Williams County, ND

Williams County has 229 recorded hail events in the NOAA Storm Events Database — 162 of them 1″ or larger and 11 at 2″ or larger. The largest on record: 3.0″ (tea cup) on July 18, 2022.

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 229 since 1957

1″ or larger 162 NWS severe threshold

2″ or larger 11 hen egg class and up

Largest recorded 3.0″ tea cup · July 18, 2022

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 Williams County

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

Most recent recorded events

Latest 8 of 229 recorded events · data through April 2026
Date	Size	Comparable to
August 7, 2025	1.0″	Quarter
August 7, 2025	1.0″	Quarter
July 25, 2025	1.0″	Quarter
July 25, 2025	0.75″	Penny
July 25, 2025	1.5″	Ping-pong ball
July 25, 2025	0.75″	Penny
June 18, 2025	1.0″	Quarter
June 18, 2025	1.0″	Quarter

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

From the storm reports

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

June 14, 2024 · 1.5″ (ping-pong ball)

Vehicles and roofs were damaged.

July 18, 2022 · 3.0″ (tea cup)

Large hail fell over the Williston area causing damage to roofs, siding, and vehicles.

July 21, 2012 · 2.75″ (baseball)

There were no reports of damage with this large hail report.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	0	5	9	26	53	102	33

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 Williams County

Has it ever hailed in Williams County?

Yes — 229 hail events have been recorded for Williams County, ND in the NOAA Storm Events Database since 1957, including 162 of 1″ (quarter size) or larger.

When did it last hail in Williams County?

The most recent recorded hail event for Williams County, ND is August 7, 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 Williams County?

3.0″ (tea cup), recorded on July 18, 2022. 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 North Dakota hail history

All 53 North Dakota 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.