Hail History

Hail history for Yankton, South Dakota

NOAA hail reports in and within about 5 km (3 miles) of Yankton since 1956, with preliminary reports to November 3, 2026.

Readout · Yankton

Last hail
Jun 29, 2026
1.00 in, quarter size
Hail days, last 5 years
7
since Nov 3, 2021 · 9 reports
Largest ever
2.75 in
baseball · Jun 29, 2017

63 reports on 47 days since 1956 · #18 of 305 South Dakota places

Hail map · Yankton

Yankton Mission Hill Utica Gayville Lesterville Tabor Wakonda Meckling Irene 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
63 most recent reports with a location; Yankton County is shaded. Open street map

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What the record says about Yankton

The latest hail report in and around Yankton is from June 29, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 7 separate hail days; the biggest stones in that time were 1.00 in on June 29, 2026.

Over the 20 years 2006–2025, Yankton logged 27 reports on 18 hail days, about 1.4 reports a year. That is 3.0 times the median South Dakota town on this site (0.5 a year) and ranks #18 of 305 South Dakota cities and towns on this site for all-time reports. Yankton accounts for 24% of the 258 reports filed in Yankton County.

5% 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 June 29, 2017 near 3.54 W Yankton.

Reports held about level in 2016–2025 (13) compared with 2006–2015 (14). The busiest year was 2004, with 6 reports on 3 days. Hail here peaks in June (33% of reports); 57% fall between April and June.

Reports a year 2006–2025 average

  • Yankton 1.4
  • Yankton County 5.8
  • Median South Dakota town on this site 0.5

Hail days 2006–2025

  • Yankton 18
  • Yankton County 57
  • Median South Dakota town on this site 7

Share 2 in or larger of sized reports

  • Yankton 5%
  • Yankton County 5%
  • Median South Dakota town on this site 7%

Hail over time

0246 1956: 1 reports, largest 1.75 in 1960 1970 1973: 1 reports, largest 1.75 in 1978: 1 reports, largest 1.75 in 1979: 3 reports, largest 1.75 in 1980: 2 reports, largest 2.75 in 1980 1984: 2 reports, largest 1.75 in 1986: 2 reports, largest 1.00 in 1990 1996: 2 reports, largest 1.00 in 1997: 1 reports, largest 0.75 in 1998: 1 reports, largest 0.75 in 1999: 3 reports, largest 0.75 in 2000: 3 reports, largest 1.00 in 2000 2001: 2 reports, largest 1.50 in 2002: 2 reports, largest 0.88 in 2003: 3 reports, largest 1.75 in 2004: 6 reports, largest 1.00 in 2007: 1 reports, largest 0.88 in 2008: 4 reports, largest 1.00 in 2009: 3 reports, largest 1.75 in 2010: 1 reports, largest 1.75 in 2010 2011: 1 reports, largest 1.00 in 2013: 2 reports, largest 1.25 in 2015: 2 reports, largest 1.00 in 2016: 1 reports, largest 1.00 in 2017: 4 reports, largest 2.75 in 2020 2022: 3 reports, largest 1.00 in 2025: 5 reports, largest 1.00 in 2026: 1 reports, largest 1.00 in
Reports per year, 1956–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0102030 Jan Feb Mar April: 4 reports (6%) Apr May: 11 reports (17%) May June: 21 reports (33%) Jun July: 11 reports (17%) Jul August: 11 reports (17%) Aug September: 4 reports (6%) Sep October: 1 reports (2%) Oct Nov Dec
All 63 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 14 5
2024 0
2023 0
2022 111 3
2021 0
2020 0
2019 0
2018 0
2017 31 4

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jun 29, 2026 1 1.00 in —
Jun 27, 2025 1 0.75 in —
Jun 16, 2025 3 1.00 in —
Apr 17, 2025 1 1.00 in —
Aug 1, 2022 1 1.00 in —
May 30, 2022 1 1.00 in —
Apr 28, 2022 1 0.88 in —

Largest hail on record

Largest hail reports in Yankton
Date Size Location County Time · source
Jun 29, 2017 2.75 inbaseball 3.54 W Yankton Yankton 16:37 local · NCEI
May 29, 1980 2.75 inbaseball — Yankton 14:41 local · NCEI
Jun 29, 2017 2.00 inhen egg 1.01 E Yankton Yankton 16:54 local · NCEI
Jun 26, 2010 1.75 ingolf ball 1.71 SE Napa Yankton 17:51 local · NCEI
Jul 9, 2009 1.75 ingolf ball 1.47 NNW Yankton Yankton 06:09 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 Yankton
Date Size Location County Time · source
Jun 29, 2026 1.00 inquarter 2.57 SW Napa Yankton 18:52 local · NCEI
Jun 27, 2025 0.75 inpenny 1.47 NNW Yankton Yankton 22:43 local · NCEI
Jun 16, 2025 1.00 inquarter 1.23 NE Yankton Yankton 14:30 local · NCEI
Jun 16, 2025 0.75 inpenny 0.51 W Yankton Yankton 14:29 local · NCEI
Jun 16, 2025 1.00 inquarter 1.23 SE Napa Yankton 14:27 local · NCEI
Apr 17, 2025 1.00 inquarter 0.86 SW (Ykn)chan Gurney Arp Yankton 23:39 local · NCEI
Aug 1, 2022 1.00 inquarter 3.54 W Yankton Yankton 21:05 local · NCEI
May 30, 2022 1.00 inquarter 1.23 NE Yankton Yankton 02:34 local · NCEI
Apr 28, 2022 0.88 innickel 2.13 NNE (Ykn)chan Gurney Arp Yankton 19:50 local · NCEI
Aug 21, 2017 1.00 inquarter 1.71 NW Yankton Yankton 12:36 local · NCEI
Jun 29, 2017 2.00 inhen egg 1.01 E Yankton Yankton 16:54 local · NCEI
Jun 29, 2017 1.00 inquarter 1.47 NNW Yankton Yankton 16:48 local · NCEI

Hail history near Yankton

Questions about hail in Yankton

How often does it hail in Yankton, South Dakota?

63 hail reports have been logged in and within about 5 km (3 miles) of Yankton since 1956. Over the 20 years 2006–2025 that averages 1.4 reports a year. That ranks #18 of 305 South Dakota places by number of reports.

When is hail season in Yankton?

Most reports come in June, May, July. June alone accounts for 33% of all reports.

What is the largest hail recorded in Yankton?

2.75 in (baseball size) on June 29, 2017 near 3.54 W Yankton. 5% of reports here were 2 inches or larger.

When did it last hail in Yankton?

The most recent report in this data is from June 29, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

7 separate days with hail reports since November 3, 2021, adding up to 9 reports. The most recent was June 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.