Hail history for Herkimer County, NY

Herkimer County has 100 recorded hail events in the NOAA Storm Events Database — 58 of them 1″ or larger and 3 at 2″ or larger. The largest on record: 2.0″ (hen egg) on June 9, 2011.

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 100 since 1970

1″ or larger 58 NWS severe threshold

2″ or larger 3 hen egg class and up

Largest recorded 2.0″ hen egg · June 9, 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 Herkimer County

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

Most recent recorded events

Latest 8 of 100 recorded events · data through April 2026
Date	Size	Comparable to
August 14, 2024	1.0″	Quarter
August 4, 2023	1.0″	Quarter
August 4, 2023	0.88″	Nickel
August 4, 2023	1.0″	Quarter
July 14, 2023	1.0″	Quarter
July 13, 2023	1.0″	Quarter
July 13, 2023	1.0″	Quarter
June 2, 2023	1.5″	Ping-pong ball

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

From the storm reports

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

August 14, 2024 · 1.0″ (quarter)

Quarter size hail was reported.

June 9, 2011 · 2.0″ (hen egg)

Hail up to 2 inches in diameter was reported during a thunderstorm in West Winfield.

June 8, 2011 · 2.0″ (hen egg)

Two inch diameter size hail was reported during a thunderstorm in Poland.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	2	3	9	44	29	13

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 Herkimer County

Has it ever hailed in Herkimer County?

Yes — 100 hail events have been recorded for Herkimer County, NY in the NOAA Storm Events Database since 1970, including 58 of 1″ (quarter size) or larger.

When did it last hail in Herkimer County?

The most recent recorded hail event for Herkimer County, NY is August 14, 2024, 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 Herkimer County?

2.0″ (hen egg), recorded on June 9, 2011. Hail that size meets or exceeds the National Weather Service severe threshold. 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 New York hail history

All 62 New York 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.