Hail history for Aurora County, SD

Aurora County has 152 recorded hail events in the NOAA Storm Events Database — 94 of them 1″ or larger and 7 at 2″ or larger. The largest on record: 4.25″ (grapefruit) on June 21, 2007.

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 152 since 1958

1″ or larger 94 NWS severe threshold

2″ or larger 7 hen egg class and up

Largest recorded 4.25″ grapefruit · June 21, 2007

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 Aurora County

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

Most recent recorded events

Latest 8 of 152 recorded events · data through April 2026
Date	Size	Comparable to
August 6, 2025	1.0″	Quarter
July 28, 2025	0.88″	Nickel
July 23, 2025	1.25″	Half dollar
June 16, 2025	0.88″	Nickel
June 16, 2025	0.88″	Nickel
June 16, 2025	1.0″	Quarter
July 30, 2024	1.0″	Quarter
August 10, 2023	1.0″	Quarter

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

From the storm reports

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

August 6, 2025 · 1.0″ (quarter)

Hail ranged in size up to quarter size.

August 8, 2009 · 2.75″ (baseball)

Large hail broke windows, dented vehicles and siding, and damaged crops. The amount of property and crop damage was not known.

June 21, 2007 · 4.25″ (grapefruit)

Very large hail caused heavy damage to vehicles and buildings. Windows were broken on both vehicles and buildings, including homes. Siding and other roof damage was reported. Vehicles were severely dented. Most of the property damage was reported in the town of White lake. The hail also stripped leaves from trees and damaged crops. The amount of property and crop damage was not known.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
1	3	2	3	15	62	47	19

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 Aurora County

Has it ever hailed in Aurora County?

Yes — 152 hail events have been recorded for Aurora County, SD in the NOAA Storm Events Database since 1958, including 94 of 1″ (quarter size) or larger.

When did it last hail in Aurora County?

The most recent recorded hail event for Aurora County, SD is August 6, 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 Aurora County?

4.25″ (grapefruit), recorded on June 21, 2007. 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.