Hail history for St. Tammany Parish, LA

St. Tammany Parish has 98 recorded hail events in the NOAA Storm Events Database — 70 of them 1″ or larger and 4 at 2″ or larger. The largest on record: 3.0″ (tea cup) on May 24, 1988.

Records 1950–present Data through April 2026 Peak month March

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 98 since 1973

1″ or larger 70 NWS severe threshold

2″ or larger 4 hen egg class and up

Largest recorded 3.0″ tea cup · May 24, 1988

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 St. Tammany Parish

Recorded events by month, 1950–present. The amber bar marks St. Tammany Parish's peak: March.

Most recent recorded events

Latest 8 of 98 recorded events · data through April 2026
Date	Size	Comparable to
September 25, 2024	1.0″	Quarter
June 1, 2024	1.0″	Quarter
February 4, 2024	1.0″	Quarter
January 8, 2024	1.0″	Quarter
January 8, 2024	1.0″	Quarter
August 27, 2023	1.75″	Golf ball
August 27, 2023	1.75″	Golf ball
August 27, 2023	1.5″	Ping-pong ball

Looking for a specific storm? Use the did-it-hail date lookup for St. Tammany Parish.

From the storm reports

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

September 25, 2024 · 1.0″ (quarter)

A video at Fountainbleu High School showed one inch sized hail.

March 31, 2005 · 2.75″ (baseball)

Baseball size hail was reported in the community of Hickory.

March 31, 2005 · 2.5″ (tennis ball)

Hail ranging in size from pennies to tennis balls was observed around Pearl River.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	1	8	25	23	26	15

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 St. Tammany Parish

Has it ever hailed in St. Tammany Parish?

Yes — 98 hail events have been recorded for St. Tammany Parish, LA in the NOAA Storm Events Database since 1973, including 70 of 1″ (quarter size) or larger.

When did it last hail in St. Tammany Parish?

The most recent recorded hail event for St. Tammany Parish, LA is September 25, 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 St. Tammany Parish?

3.0″ (tea cup), recorded on May 24, 1988. 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 Louisiana hail history

All 64 Louisiana 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.