Hail history for Haakon County, SD

Haakon County has 222 recorded hail events in the NOAA Storm Events Database — 151 of them 1″ or larger and 23 at 2″ or larger. The largest on record: 3.0″ (tea cup) on May 25, 2016.

Records 1950–present Data through April 2026 Peak month July

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 222 since 1957

1″ or larger 151 NWS severe threshold

2″ or larger 23 hen egg class and up

Largest recorded 3.0″ tea cup · May 25, 2016

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 Haakon County

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

Most recent recorded events

Latest 8 of 222 recorded events · data through April 2026
Date	Size	Comparable to
July 18, 2025	1.0″	Quarter
August 21, 2024	2.0″	Hen egg
August 21, 2024	0.88″	Nickel
August 18, 2024	1.0″	Quarter
August 18, 2024	0.88″	Nickel
July 30, 2024	1.5″	Ping-pong ball
July 29, 2024	1.0″	Quarter
July 29, 2024	1.25″	Half dollar

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

From the storm reports

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

July 18, 2025 · 1.0″ (quarter)

Larger pieces up to 1 inch in diameter.

May 25, 2016 · 3.0″ (tea cup)

Hail to around baseball size covered the ground.

May 25, 2016 · 3.0″ (tea cup)

The storm also produced 50 mph wind gusts.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	6	8	5	21	90	52	39

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 Haakon County

Has it ever hailed in Haakon County?

Yes — 222 hail events have been recorded for Haakon County, SD in the NOAA Storm Events Database since 1957, including 151 of 1″ (quarter size) or larger.

When did it last hail in Haakon County?

The most recent recorded hail event for Haakon County, SD is July 18, 2025, 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 Haakon County?

3.0″ (tea cup), recorded on May 25, 2016. 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.