Hail history for Leavenworth County, KS

Leavenworth County has 323 recorded hail events in the NOAA Storm Events Database — 203 of them 1″ or larger and 21 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on August 19, 2011.

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 323 since 1962

1″ or larger 203 NWS severe threshold

2″ or larger 21 hen egg class and up

Largest recorded 4.5″ grapefruit · August 19, 2011

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 Leavenworth County

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

Most recent recorded events

Latest 8 of 323 recorded events · data through April 2026
Date	Size	Comparable to
March 10, 2026	1.0″	Quarter
October 18, 2025	1.0″	Quarter
May 19, 2025	1.25″	Half dollar
May 19, 2025	1.25″	Half dollar
May 19, 2025	1.0″	Quarter
May 26, 2024	1.0″	Quarter
March 13, 2024	1.5″	Ping-pong ball
March 13, 2024	1.0″	Quarter

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

From the storm reports

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

March 10, 2026 · 1.0″ (quarter)

Quarter sized hail west of Bonner Springs.

August 19, 2011 · 4.5″ (grapefruit)

Hail up to softball in size, was reported in Fort leavenworth. Car windows were broken out.

August 19, 2011 · 4.25″ (grapefruit)

Hail up to the size of softballs were reported around Easton. Windows were broken out of homes, along with roof damage.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	12	19	11	37	134	87	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 Leavenworth County

Has it ever hailed in Leavenworth County?

Yes — 323 hail events have been recorded for Leavenworth County, KS in the NOAA Storm Events Database since 1962, including 203 of 1″ (quarter size) or larger.

When did it last hail in Leavenworth County?

The most recent recorded hail event for Leavenworth County, KS is March 10, 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 Leavenworth County?

4.5″ (grapefruit), recorded on August 19, 2011. 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 Kansas hail history

All 105 Kansas 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.