Hail history for Johnson County, MO

Johnson County has 292 recorded hail events in the NOAA Storm Events Database — 203 of them 1″ or larger and 16 at 2″ or larger. The largest on record: 3.0″ (tea cup) on August 17, 2004.

Records 1950–present Data through April 2026 Peak month May

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 292 since 1956

1″ or larger 203 NWS severe threshold

2″ or larger 16 hen egg class and up

Largest recorded 3.0″ tea cup · August 17, 2004

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 Johnson County

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

Most recent recorded events

Latest 8 of 292 recorded events · data through April 2026
Date	Size	Comparable to
April 15, 2026	1.5″	Ping-pong ball
April 15, 2026	1.25″	Half dollar
September 18, 2025	1.0″	Quarter
September 18, 2025	1.0″	Quarter
March 12, 2024	1.0″	Quarter
September 23, 2023	1.0″	Quarter
September 5, 2023	1.0″	Quarter
September 5, 2023	1.5″	Ping-pong ball

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

From the storm reports

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

April 15, 2026 · 1.25″ (half dollar)

Ping pong ball sized hail reported along Route 58 between Strasburg and Kingsville.

April 5, 2023 · 2.0″ (hen egg)

Two inch hail was reported in Chilhowee.

May 26, 2016 · 2.5″ (tennis ball)

The USAF observer at Whiteman AFB reported tennis ball sized hail.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
4	10	9	14	17	129	75	34

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 Johnson County

Has it ever hailed in Johnson County?

Yes — 292 hail events have been recorded for Johnson County, MO in the NOAA Storm Events Database since 1956, including 203 of 1″ (quarter size) or larger.

When did it last hail in Johnson County?

The most recent recorded hail event for Johnson County, MO is April 15, 2026, with 1.5″ (ping-pong 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 Johnson County?

3.0″ (tea cup), recorded on August 17, 2004. 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 Missouri hail history

All 115 Missouri 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.