Hail History

Hail history for Potter County, South Dakota

Every NOAA hail report filed in Potter County since 1960, with preliminary National Weather Service reports to November 3, 2026.

Readout · Potter County

Last hail
Aug 29, 2026
0.70 in, marble size · preliminary
Hail days, last 5 years
10
since Nov 3, 2021 · 15 reports
Largest ever
3.00 in
teacup · Aug 5, 2025

136 reports on 94 days since 1960 · #56 of 67 South Dakota counties

Hail map · Potter County

Hoven Tolstoy Gettysburg Lebanon 20 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
129 most recent reports with a location. Dot size and colour follow hail size. Open street map

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What the record says about Potter County

The latest hail report in Potter County is from August 29, 2026, 0.70 in (marble size). Since November 3, 2021 there have been 10 separate hail days; the biggest stones in that time were 3.00 in on August 5, 2025.

Over the 20 years 2006–2025, Potter County logged 76 reports on 50 hail days, about 3.8 reports a year. That is 31% less than the median South Dakota county (5.5 a year) and ranks #56 of 67 South Dakota counties for all-time reports. Potter County holds 1% of all 17,223 hail reports in South Dakota.

7% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median South Dakota county. The largest hail on record here is 3.00 in (teacup) on August 5, 2025 near 1.19 SE Hoven.

Reports were down 31% in 2016–2025 (31) compared with 2006–2015 (45). The busiest year was 2006, with 14 reports on 9 days. Hail here peaks in August (38% of reports); 30% fall between April and June.

Reports a year 2006–2025 average

  • Potter County 3.8
  • Median South Dakota county 5.5

Hail days 2006–2025

  • Potter County 50
  • Median South Dakota county 54

Share 2 in or larger of sized reports

  • Potter County 7%
  • Median South Dakota county 8%

Hail over time

051015 1960: 1 reports, largest 2.75 in 1960 1963: 1 reports, largest 1.00 in 1970 1974: 1 reports, largest 1.75 in 1978: 1 reports, largest 1.75 in 1979: 2 reports, largest 1.75 in 1980: 1 reports, largest 1.75 in 1980 1985: 5 reports, largest 1.00 in 1986: 2 reports, largest 1.75 in 1987: 2 reports, largest 1.75 in 1989: 1 reports, largest 1.75 in 1990 1991: 1 reports, largest 0.75 in 1992: 2 reports, largest 0.75 in 1993: 3 reports, largest 1.75 in 1995: 4 reports, largest 2.75 in 1997: 6 reports, largest 3.00 in 1999: 1 reports, largest 1.75 in 2000: 5 reports, largest 1.00 in 2000 2001: 4 reports, largest 2.75 in 2002: 5 reports, largest 1.25 in 2003: 2 reports, largest 0.88 in 2004: 5 reports, largest 1.75 in 2005: 3 reports, largest 1.00 in 2006: 14 reports, largest 1.75 in 2007: 8 reports, largest 1.75 in 2008: 2 reports, largest 0.88 in 2009: 3 reports, largest 0.88 in 2010: 1 reports, largest 1.50 in 2010 2011: 12 reports, largest 3.00 in 2012: 2 reports, largest 1.00 in 2014: 3 reports, largest 2.75 in 2016: 4 reports, largest 1.75 in 2017: 3 reports, largest 1.75 in 2018: 2 reports, largest 1.75 in 2019: 5 reports, largest 2.50 in 2020: 2 reports, largest 1.25 in 2020 2021: 2 reports, largest 1.00 in 2022: 4 reports, largest 1.75 in 2023: 2 reports, largest 1.25 in 2024: 3 reports, largest 1.00 in 2025: 4 reports, largest 3.00 in 2026: 2 reports, largest 1.00 in
Reports per year, 1960–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0204060 Jan Feb Mar April: 4 reports (3%) Apr May: 11 reports (8%) May June: 26 reports (19%) Jun July: 36 reports (26%) Jul August: 51 reports (38%) Aug September: 4 reports (3%) Sep October: 4 reports (3%) Oct Nov Dec
All 136 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 2 2
2025 22 4
2024 12 3
2023 2 2
2022 121 4
2021 11 2
2020 11 2
2019 14 5
2018 11 2
2017 111 3

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 29, 2026 2 1.00 in View
Aug 5, 2025 2 3.00 in —
Jul 14, 2025 2 0.75 in —
May 23, 2024 1 1.00 in —
May 19, 2024 1 0.88 in —
Apr 16, 2024 1 1.00 in —
Jul 30, 2023 2 1.25 in —
Jun 23, 2022 1 1.75 in —
May 7, 2022 2 1.00 in —
Apr 22, 2022 1 1.75 in —

Largest hail on record

Largest hail reports in Potter County
Date Size Location Time · source
Aug 5, 2025 3.00 inteacup 1.19 SE Hoven 20:20 local · NCEI
Aug 28, 2011 3.00 inteacup Tolstoy 04:15 local · NCEI
Jul 16, 1997 3.00 inteacup 2 E Lebanon 19:45 local · NCEI
Jun 21, 2014 2.75 inbaseball 15.27 NW Gettysburg 17:48 local · NCEI
Jul 18, 2001 2.75 inbaseball 2 NE Tolstoy 20:03 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Potter County
Date Size Location Time · source
Aug 29, 2026 0.70 inmarble 5 SSE Lowry 23:30 UTC · NWS prelim.
Aug 29, 2026 1.00 inquarter Gettysburg 02:00 UTC · NWS prelim.
Aug 5, 2025 1.50 inping pong ball 4.23 SE Hoven 20:45 local · NCEI
Aug 5, 2025 3.00 inteacup 1.19 SE Hoven 20:20 local · NCEI
Jul 14, 2025 0.75 inpenny 1.2 SW Lebanon 18:48 local · NCEI
Jul 14, 2025 0.75 inpenny 5.42 W Gettysburg 18:30 local · NCEI
May 23, 2024 1.00 inquarter 8.87 SW Hoven 19:08 local · NCEI
May 19, 2024 0.88 innickel 3.69 NW Gorman 17:39 local · NCEI
Apr 16, 2024 1.00 inquarter 0.69 S Gettysburg 02:30 local · NCEI
Jul 30, 2023 1.00 inquarter 7.95 W Gorman 11:00 local · NCEI
Jul 30, 2023 1.25 inhalf dollar 5.69 NW Lebanon 10:26 local · NCEI
Jun 23, 2022 1.75 ingolf ball 13.26 NNW Gettysburg 22:21 local · NCEI

Cities and towns in Potter County

PlaceReportsLargest
Hoven233.00 in
Tolstoy193.00 in
Gettysburg181.75 in
Lebanon113.00 in

Smaller places with fewer than 10 reports

These places have too few reports for a page of their own, so their record lives here.

PlaceReportsHail daysLatest
Swift Bird11Aug 24, 2006

Questions about hail in Potter County

How often does it hail in Potter County, South Dakota?

136 hail reports have been logged in Potter County since 1960. Over the 20 years 2006–2025 that averages 3.8 reports a year. That ranks #56 of 67 South Dakota counties by number of reports.

When is hail season in Potter County?

Most reports come in August, July, June. August alone accounts for 38% of all reports.

What is the largest hail recorded in Potter County?

3.00 in (teacup size) on August 5, 2025 near 1.19 SE Hoven. 7% of reports here were 2 inches or larger.

When did it last hail in Potter County?

The most recent report in this data is from August 29, 2026 (0.70 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Potter County had in the last five years?

10 separate days with hail reports since November 3, 2021, adding up to 15 reports. The most recent was August 29, 2026.

Where does this hail data come from?

Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.