Hail history for Allen County, KS

Allen County has 195 recorded hail events in the NOAA Storm Events Database — 123 of them 1″ or larger and 7 at 2″ or larger. The largest on record: 4.25″ (grapefruit) on September 13, 2005.

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 195 since 1964

1″ or larger 123 NWS severe threshold

2″ or larger 7 hen egg class and up

Largest recorded 4.25″ grapefruit · September 13, 2005

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 Allen County

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

Most recent recorded events

Latest 8 of 195 recorded events · data through April 2026
Date	Size	Comparable to
April 27, 2026	1.75″	Golf ball
April 26, 2026	1.0″	Quarter
April 26, 2026	1.0″	Quarter
May 19, 2025	1.0″	Quarter
May 19, 2025	1.25″	Half dollar
May 19, 2025	1.0″	Quarter
July 11, 2024	1.5″	Ping-pong ball
April 27, 2024	1.0″	Quarter

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

From the storm reports

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

April 27, 2026 · 1.75″ (golf ball)

Public report of golf ball size hail in Moran.

April 2, 2014 · 2.5″ (tennis ball)

A prolific hail producing storm dropped large hail across the city of Iola for twelve minutes. The hail ranged in size from tennis ball size (2.5 inches) to ping pong ball size (1.5 inches). There was widespread hail damage to roofs and cars across town.

September 13, 2005 · 4.25″ (grapefruit)

Damage?

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	5	4	21	93	44	26

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 Allen County

Has it ever hailed in Allen County?

Yes — 195 hail events have been recorded for Allen County, KS in the NOAA Storm Events Database since 1964, including 123 of 1″ (quarter size) or larger.

When did it last hail in Allen County?

The most recent recorded hail event for Allen County, KS is April 27, 2026, with 1.75″ (golf 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 Allen County?

4.25″ (grapefruit), recorded on September 13, 2005. 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.