Hail History

Hail history for Bennett County, South Dakota

Every NOAA hail report filed in Bennett County since 1964, with preliminary National Weather Service reports to November 3, 2026.

Readout · Bennett County

Last hail
Aug 24, 2026
1.50 in, ping pong ball size · preliminary
Hail days, last 5 years
19
since Nov 3, 2021 · 30 reports
Largest ever
4.25 in
grapefruit · Jun 25, 2024

226 reports on 145 days since 1964 · #28 of 67 South Dakota counties

Hail map · Bennett County

Martin Allen 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
224 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 Bennett County

The latest hail report in Bennett County is from August 24, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 19 separate hail days; the biggest stones in that time were 4.25 in on June 25, 2024.

Over the 20 years 2006–2025, Bennett County logged 137 reports on 83 hail days, about 6.8 reports a year. That is 25% more than the median South Dakota county (5.5 a year) and ranks #28 of 67 South Dakota counties for all-time reports. Bennett County holds 1% of all 17,223 hail reports in South Dakota.

11% 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 4.25 in (grapefruit) on June 25, 2024 near 1 E Martin.

Reports were down 37% in 2016–2025 (53) compared with 2006–2015 (84). The busiest year was 2007, with 17 reports on 10 days. Hail here peaks in June (36% of reports); 48% fall between April and June.

Reports a year 2006–2025 average

  • Bennett County 6.8
  • Median South Dakota county 5.5

Hail days 2006–2025

  • Bennett County 83
  • Median South Dakota county 54

Share 2 in or larger of sized reports

  • Bennett County 11%
  • Median South Dakota county 8%

Hail over time

05101520 1964: 1 reports, largest 0.75 in 1966: 1 reports, largest 3.00 in 1967: 1 reports, largest 1.50 in 1970 1974: 2 reports, largest 2.75 in 1977: 2 reports, largest 2.75 in 1978: 1 reports, largest 1.50 in 1980: 4 reports, largest 1.75 in 1980 1981: 1 reports, largest 1.75 in 1984: 1 reports, largest 0.75 in 1985: 2 reports, largest 2.25 in 1986: 1 reports, largest 1.75 in 1990: 1 reports, largest 1.75 in 1990 1991: 4 reports, largest 1.75 in 1993: 1 reports, largest 1.75 in 1994: 1 reports, largest 2.00 in 1996: 1 reports, largest 0.75 in 1997: 2 reports, largest 1.00 in 1999: 3 reports, largest 1.75 in 2000: 7 reports, largest 1.75 in 2000 2001: 7 reports, largest 1.75 in 2002: 6 reports, largest 1.50 in 2003: 17 reports, largest 1.75 in 2004: 4 reports, largest 1.75 in 2005: 13 reports, largest 1.50 in 2006: 13 reports, largest 2.00 in 2007: 17 reports, largest 2.00 in 2008: 8 reports, largest 1.75 in 2009: 7 reports, largest 1.00 in 2010: 9 reports, largest 2.50 in 2010 2011: 13 reports, largest 2.75 in 2012: 1 reports, largest 1.00 in 2013: 6 reports, largest 2.50 in 2014: 6 reports, largest 2.75 in 2015: 4 reports, largest 1.75 in 2016: 4 reports, largest 1.25 in 2017: 1 reports, largest 1.00 in 2018: 7 reports, largest 1.50 in 2019: 5 reports, largest 1.50 in 2020: 9 reports, largest 4.00 in 2020 2021: 2 reports, largest 2.00 in 2022: 7 reports, largest 1.50 in 2023: 4 reports, largest 1.75 in 2024: 12 reports, largest 4.25 in 2025: 2 reports, largest 1.75 in 2026: 5 reports, largest 2.50 in
Reports per year, 1964–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0255075100 Jan Feb March: 2 reports (1%) Mar Apr May: 27 reports (12%) May June: 81 reports (36%) Jun July: 62 reports (27%) Jul August: 45 reports (20%) Aug September: 7 reports (3%) Sep October: 2 reports (1%) Oct Nov Dec
All 226 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 14 5
2025 11 2
2024 741 12
2023 13 4
2022 3121 7
2021 2 2
2020 1431 9
2019 122 5
2018 16 7
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 24, 2026 3 2.50 in View
Aug 17, 2026 1 1.00 in View
Jun 29, 2026 1 2.00 in —
Jul 26, 2025 1 1.75 in —
Jun 15, 2025 1 0.75 in —
Aug 26, 2024 1 1.00 in —
Jul 28, 2024 1 1.00 in —
Jul 3, 2024 2 2.75 in —
Jul 1, 2024 1 1.50 in —
Jun 25, 2024 6 4.25 in —
Jun 1, 2024 1 1.25 in —
Aug 12, 2023 1 1.00 in —
Aug 8, 2023 1 1.75 in —
Aug 1, 2023 1 1.75 in —
Jul 30, 2023 1 1.00 in —
Sep 16, 2022 1 1.00 in —
Aug 4, 2022 2 1.50 in —
Jul 21, 2022 1 1.25 in —
May 28, 2022 3 1.00 in —

Largest hail on record

Largest hail reports in Bennett County
Date Size Location Damage Time · source
Jun 25, 2024 4.25 ingrapefruit 1 E Martin $25K 17:30 local · NCEI
Jul 10, 2020 4.00 ingrapefruit Swett — 17:55 local · NCEI
Jul 28, 1966 3.00 inteacup — — 16:00 local · NCEI
Jul 3, 2024 2.75 inbaseball 8.05 WSW Swett — 12:35 local · NCEI
Jul 10, 2020 2.75 inbaseball 8.98 S Martin — 18:15 local · NCEI

Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.

Size of every report

Most recent reports

Most recent hail reports in Bennett County
Date Size Location Time · source
Aug 24, 2026 1.50 inping pong ball 1 N Martin 00:25 UTC · NWS prelim.
Aug 24, 2026 2.50 intennis ball 4 NW Martin 00:22 UTC · NWS prelim.
Aug 24, 2026 1.00 inquarter 5 W Martin 00:14 UTC · NWS prelim.
Aug 17, 2026 1.00 inquarter Martin 00:56 UTC · NWS prelim.
Jun 29, 2026 2.00 inhen egg 0.69 S Vetal 01:36 local · NCEI
Jul 26, 2025 1.75 ingolf ball 7.62 N Vetal 17:29 local · NCEI
Jun 15, 2025 0.75 inpenny 2.05 NE Swett 19:56 local · NCEI
Aug 26, 2024 1.00 inquarter Martin 17:30 local · NCEI
Jul 28, 2024 1.00 inquarter 6.07 NNW Tuthill 21:30 local · NCEI
Jul 3, 2024 1.75 ingolf ball 3 WSW Swett 12:50 local · NCEI
Jul 3, 2024 2.75 inbaseball 8.05 WSW Swett 12:35 local · NCEI
Jul 1, 2024 1.50 inping pong ball 5 W Martin 13:16 local · NCEI

Cities and towns in Bennett County

PlaceReportsLargest
Martin354.25 in
Allen102.75 in

Questions about hail in Bennett County

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

226 hail reports have been logged in Bennett County since 1964. Over the 20 years 2006–2025 that averages 6.8 reports a year. That ranks #28 of 67 South Dakota counties by number of reports.

When is hail season in Bennett County?

Most reports come in June, July, August. June alone accounts for 36% of all reports.

What is the largest hail recorded in Bennett County?

4.25 in (grapefruit size) on June 25, 2024 near 1 E Martin. 11% of reports here were 2 inches or larger.

When did it last hail in Bennett County?

The most recent report in this data is from August 24, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

19 separate days with hail reports since November 3, 2021, adding up to 30 reports. The most recent was August 24, 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.