Hail history for Johnston County, OK

Johnston County has 241 recorded hail events in the NOAA Storm Events Database — 143 of them 1″ or larger and 20 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on April 26, 1994.

Records 1950–present Data through April 2026 Peak month April

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 241 since 1956

1″ or larger 143 NWS severe threshold

2″ or larger 20 hen egg class and up

Largest recorded 4.5″ grapefruit · April 26, 1994

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 Johnston County

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

Most recent recorded events

Latest 8 of 241 recorded events · data through April 2026
Date	Size	Comparable to
April 25, 2026	1.0″	Quarter
April 25, 2026	1.0″	Quarter
April 25, 2026	1.5″	Ping-pong ball
April 24, 2026	1.0″	Quarter
April 24, 2026	2.75″	Baseball
April 24, 2026	1.75″	Golf ball
April 24, 2026	1.0″	Quarter
April 24, 2026	2.5″	Tennis ball

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

From the storm reports

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

April 25, 2026 · 1.5″ (ping-pong ball)

The location is approximate.

April 24, 2026 · 2.75″ (baseball)

The report was relayed through mPING.

April 24, 2026 · 2.75″ (baseball)

The location is approximate.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
3	3	2	33	67	43	40	50

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 Johnston County

Has it ever hailed in Johnston County?

Yes — 241 hail events have been recorded for Johnston County, OK in the NOAA Storm Events Database since 1956, including 143 of 1″ (quarter size) or larger.

When did it last hail in Johnston County?

The most recent recorded hail event for Johnston County, OK is April 25, 2026, 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 Johnston County?

4.5″ (grapefruit), recorded on April 26, 1994. 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 Oklahoma hail history

All 77 Oklahoma 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.