Hail History

Hail history for Aberdeen, South Dakota

NOAA hail reports in and within about 5 km (3 miles) of Aberdeen since 1959, with preliminary reports to November 3, 2026.

Readout · Aberdeen

Last hail
Jul 15, 2025
0.75 in, penny size
Hail days, last 5 years
2
since Nov 3, 2021 · 4 reports
Largest ever
2.75 in
baseball · Jul 17, 2010

91 reports on 57 days since 1959 · #9 of 305 South Dakota places

Hail map · Aberdeen

Aberdeen Bath Warner Mina Westport Columbia Mansfield Groton Ferney 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
91 most recent reports with a location; Brown County is shaded. Open street map

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What the record says about Aberdeen

The latest hail report in and around Aberdeen is from July 15, 2025, 0.75 in (penny size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on May 23, 2024.

Over the 20 years 2006–2025, Aberdeen logged 44 reports on 20 hail days, about 2.2 reports a year. That is 4.9 times the median South Dakota town on this site (0.5 a year) and ranks #9 of 305 South Dakota cities and towns on this site for all-time reports. Aberdeen accounts for 20% of the 445 reports filed in Brown County.

3% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median South Dakota town on this site. The largest hail on record here is 2.75 in (baseball) on July 17, 2010 near 0.97 E Aberdeen.

Reports were down 74% in 2016–2025 (9) compared with 2006–2015 (35). The busiest year was 2010, with 10 reports on 3 days. Hail here peaks in July (35% of reports); 36% fall between April and June.

Reports a year 2006–2025 average

  • Aberdeen 2.2
  • Brown County 11.4
  • Median South Dakota town on this site 0.5

Hail days 2006–2025

  • Aberdeen 20
  • Brown County 84
  • Median South Dakota town on this site 7

Share 2 in or larger of sized reports

  • Aberdeen 3%
  • Brown County 7%
  • Median South Dakota town on this site 7%

Hail over time

036912 1959: 1 reports, largest 1.00 in 1960 1963: 1 reports, largest 0.75 in 1964: 1 reports, largest 1.50 in 1967: 1 reports, largest 1.75 in 1970: 1 reports, largest 0.75 in 1970 1972: 4 reports, largest 1.50 in 1978: 1 reports, largest 1.75 in 1980 1982: 1 reports, largest 0.75 in 1983: 2 reports, largest 1.75 in 1985: 1 reports, largest 0.75 in 1986: 4 reports, largest 1.75 in 1987: 1 reports, largest 1.75 in 1988: 1 reports, largest 2.75 in 1989: 2 reports, largest 0.75 in 1990 1991: 2 reports, largest 0.75 in 1992: 1 reports, largest 0.75 in 1996: 1 reports, largest 1.75 in 1997: 1 reports, largest 0.75 in 1998: 3 reports, largest 0.88 in 1999: 2 reports, largest 1.00 in 2000: 5 reports, largest 1.25 in 2000 2001: 1 reports, largest 1.00 in 2002: 1 reports, largest 0.75 in 2003: 3 reports, largest 1.25 in 2004: 1 reports, largest 0.88 in 2005: 4 reports, largest 1.00 in 2006: 4 reports, largest 1.75 in 2008: 2 reports, largest 0.88 in 2009: 1 reports, largest 1.75 in 2010: 10 reports, largest 2.75 in 2010 2011: 5 reports, largest 1.00 in 2013: 3 reports, largest 1.75 in 2014: 6 reports, largest 1.75 in 2015: 4 reports, largest 2.00 in 2016: 1 reports, largest 1.00 in 2017: 2 reports, largest 1.00 in 2019: 1 reports, largest 1.25 in 2020: 1 reports, largest 1.00 in 2020 2024: 2 reports, largest 1.00 in 2025: 2 reports, largest 0.75 in
Reports per year, 1959–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
010203040 Jan Feb Mar April: 4 reports (4%) Apr May: 10 reports (11%) May June: 19 reports (21%) Jun July: 32 reports (35%) Jul August: 21 reports (23%) Aug September: 5 reports (5%) Sep Oct Nov Dec
All 91 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 2 2
2024 2 2
2023 0
2022 0
2021 0
2020 1 1
2019 1 1
2018 0
2017 11 2

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 15, 2025 2 0.75 in —
May 23, 2024 2 1.00 in —

Largest hail on record

Largest hail reports in Aberdeen
Date Size Location County Time · source
Jul 17, 2010 2.75 inbaseball 0.97 E Aberdeen Brown 14:58 local · NCEI
Jul 12, 1988 2.75 inbaseball — Brown 20:52 local · NCEI
Jul 5, 2015 2.00 inhen egg 1.45 W (Abr)aberdeen Rgnl A Brown 02:00 local · NCEI
Jul 5, 2015 1.75 ingolf ball 2.07 S Aberdeen Brown 02:00 local · NCEI
Aug 3, 2014 1.75 ingolf ball 0.97 W Aberdeen Brown 16:52 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 Aberdeen
Date Size Location County Time · source
Jul 15, 2025 0.75 inpenny 0.69 S Aberdeen Brown 13:32 local · NCEI
Jul 15, 2025 0.75 inpenny 2.01 SW Aberdeen Brown 13:26 local · NCEI
May 23, 2024 1.00 inquarter 1.46 NNW Aberdeen Brown 16:39 local · NCEI
May 23, 2024 1.00 inquarter 1.61 WSW Aberdeen Brown 16:37 local · NCEI
Jun 4, 2020 1.00 inquarter 0.69 S Aberdeen Brown 17:59 local · NCEI
Jun 4, 2019 1.25 inhalf dollar 2.93 SSE Gage Brown 15:40 local · NCEI
Jul 5, 2017 1.00 inquarter 2.38 NW Aberdeen Brown 17:21 local · NCEI
Jun 13, 2017 1.00 inquarter Aberdeen Brown 02:50 local · NCEI
Jun 3, 2016 1.00 inquarter 2.52 WSW Aberdeen Brown 13:06 local · NCEI
Jul 5, 2015 1.75 ingolf ball 2.07 S Aberdeen Brown 02:00 local · NCEI
Jul 5, 2015 2.00 inhen egg 1.45 W (Abr)aberdeen Rgnl A Brown 02:00 local · NCEI
Jul 5, 2015 1.00 inquarter Aberdeen Brown 01:58 local · NCEI

Hail history near Aberdeen

Questions about hail in Aberdeen

How often does it hail in Aberdeen, South Dakota?

91 hail reports have been logged in and within about 5 km (3 miles) of Aberdeen since 1959. Over the 20 years 2006–2025 that averages 2.2 reports a year. That ranks #9 of 305 South Dakota places by number of reports.

When is hail season in Aberdeen?

Most reports come in July, August, June. July alone accounts for 35% of all reports.

What is the largest hail recorded in Aberdeen?

2.75 in (baseball size) on July 17, 2010 near 0.97 E Aberdeen. 3% of reports here were 2 inches or larger.

When did it last hail in Aberdeen?

The most recent report in this data is from July 15, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

2 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was July 15, 2025.

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.