Hail history for Platte County, WY

Platte County has 384 recorded hail events in the NOAA Storm Events Database — 311 of them 1″ or larger and 41 at 2″ or larger. The largest on record: 4.25″ (grapefruit) on July 4, 2019.

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 384 since 1959

1″ or larger 311 NWS severe threshold

2″ or larger 41 hen egg class and up

Largest recorded 4.25″ grapefruit · July 4, 2019

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 Platte County

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

Most recent recorded events

Latest 8 of 384 recorded events · data through April 2026
Date	Size	Comparable to
August 28, 2025	1.0″	Quarter
July 18, 2025	1.5″	Ping-pong ball
July 6, 2025	1.5″	Ping-pong ball
June 12, 2025	1.0″	Quarter
June 12, 2025	1.0″	Quarter
June 12, 2025	1.0″	Quarter
June 12, 2025	1.25″	Half dollar
June 12, 2025	1.75″	Golf ball

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

From the storm reports

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

August 28, 2025 · 1.0″ (quarter)

Storm chaser reports hail ranging from pea to quarter sized at the intersection of US-26 and Wheatland Hwy in Platte County.

June 12, 2017 · 4.25″ (grapefruit)

Grapefruit size hail was observed a mile south of Wheatland. Several vehilcle windshilds were damaged.

June 12, 2017 · 4.25″ (grapefruit)

Grapefruit size hail was observed three miles south of Wheatland.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	1	6	22	56	66	172	60

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 Platte County

Has it ever hailed in Platte County?

Yes — 384 hail events have been recorded for Platte County, WY in the NOAA Storm Events Database since 1959, including 311 of 1″ (quarter size) or larger.

When did it last hail in Platte County?

The most recent recorded hail event for Platte County, WY is August 28, 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 Platte County?

4.25″ (grapefruit), recorded on July 4, 2019. 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 Wyoming hail history

All 23 Wyoming 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.