Hail history for Jackson County, SD

Jackson County has 292 recorded hail events in the NOAA Storm Events Database — 205 of them 1″ or larger and 29 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on June 28, 2025.

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 292 since 1962

1″ or larger 205 NWS severe threshold

2″ or larger 29 hen egg class and up

Largest recorded 4.5″ grapefruit · June 28, 2025

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 Jackson County

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

Most recent recorded events

Latest 8 of 292 recorded events · data through April 2026
Date	Size	Comparable to
July 20, 2025	1.25″	Half dollar
July 20, 2025	0.88″	Nickel
July 9, 2025	1.0″	Quarter
July 1, 2025	1.0″	Quarter
July 1, 2025	1.75″	Golf ball
July 1, 2025	1.25″	Half dollar
June 28, 2025	1.0″	Quarter
June 28, 2025	4.5″	Grapefruit

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

From the storm reports

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

July 20, 2025 · 0.88″ (nickel)

Estimated hail size report.

June 28, 2025 · 4.5″ (grapefruit)

Took out Jackson Co. Deputy Sheriff.

June 13, 2022 · 3.25″ (tea cup)

Hail was mostly golf ball size or smaller.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	2	8	24	127	80	49

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 Jackson County

Has it ever hailed in Jackson County?

Yes — 292 hail events have been recorded for Jackson County, SD in the NOAA Storm Events Database since 1962, including 205 of 1″ (quarter size) or larger.

When did it last hail in Jackson County?

The most recent recorded hail event for Jackson County, SD is July 20, 2025, with 1.25″ (half dollar) 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 Jackson County?

4.5″ (grapefruit), recorded on June 28, 2025. 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 South Dakota hail history

All 66 South Dakota 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.