Hail History

Hail history for Mobridge, South Dakota

NOAA hail reports in and within about 5 km (3 miles) of Mobridge since 1955, with preliminary reports to November 3, 2026.

Readout · Mobridge

Last hail
Jul 30, 2023
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
4.00 in
grapefruit · Sep 2, 1962

38 reports on 30 days since 1955 · #32 of 305 South Dakota places

Hail map · Mobridge

Mobridge Glenham Selby Java 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
38 most recent reports with a location; Walworth County is shaded. Open street map

For homeowners

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What the record says about Mobridge

The latest hail report in and around Mobridge is from July 30, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on July 30, 2023.

Over the 20 years 2006–2025, Mobridge logged 23 reports on 15 hail days, about 1.1 reports a year. That is 2.6 times the median South Dakota town on this site (0.5 a year) and ranks #32 of 305 South Dakota cities and towns on this site for all-time reports. Mobridge accounts for 21% of the 181 reports filed in Walworth County.

8% 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 4.00 in (grapefruit) on September 2, 1962.

Reports were down 56% in 2016–2025 (7) compared with 2006–2015 (16). The busiest year was 2007, with 7 reports on 3 days. Hail here peaks in July (32% of reports); 34% fall between April and June.

Reports a year 2006–2025 average

  • Mobridge 1.1
  • Walworth County 5.7
  • Median South Dakota town on this site 0.5

Hail days 2006–2025

  • Mobridge 15
  • Walworth County 50
  • Median South Dakota town on this site 7

Share 2 in or larger of sized reports

  • Mobridge 8%
  • Walworth County 8%
  • Median South Dakota town on this site 7%

Hail over time

02468 1955: 1 reports, largest 1.00 in 1957: 1 reports, largest ? in 1960 1962: 1 reports, largest 4.00 in 1964: 1 reports, largest 1.75 in 1969: 1 reports, largest 1.75 in 1970 1975: 1 reports, largest 2.75 in 1980 1984: 1 reports, largest 1.75 in 1987: 1 reports, largest 1.75 in 1990: 1 reports, largest 1.00 in 1990 1992: 1 reports, largest 0.75 in 1997: 1 reports, largest 0.88 in 2000: 1 reports, largest 1.00 in 2000 2003: 1 reports, largest 1.25 in 2005: 2 reports, largest 0.88 in 2006: 1 reports, largest 0.88 in 2007: 7 reports, largest 2.75 in 2008: 1 reports, largest 0.75 in 2009: 1 reports, largest 0.75 in 2010 2012: 3 reports, largest 1.00 in 2014: 3 reports, largest 1.75 in 2016: 4 reports, largest 1.50 in 2018: 1 reports, largest 1.00 in 2019: 1 reports, largest 1.50 in 2020 2023: 1 reports, largest 1.00 in
Reports per year, 1955–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
051015 Jan Feb Mar Apr May: 3 reports (8%) May June: 10 reports (26%) Jun July: 12 reports (32%) Jul August: 11 reports (29%) Aug September: 2 reports (5%) Sep Oct Nov Dec
All 38 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 1 1
2022 0
2021 0
2020 0
2019 1 1
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 30, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Mobridge
Date Size Location County Time · source
Sep 2, 1962 4.00 ingrapefruit — — 16:30 local · NCEI
Aug 10, 2007 2.75 inbaseball 0.84 NW Mobridge Walworth 19:23 local · NCEI
Jun 3, 1975 2.75 inbaseball — — 17:00 local · NCEI
Jun 13, 2014 1.75 ingolf ball 2.38 SE Mobridge Walworth 21:18 local · NCEI
Aug 10, 2007 1.75 ingolf ball 2.06 ESE Mobridge Walworth 18:57 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 Mobridge
Date Size Location County Time · source
Jul 30, 2023 1.00 inquarter 0.84 SW (Y26)mobridge Arpt Walworth 09:28 local · NCEI
Jul 16, 2019 1.50 inping pong ball 0.84 NW Mobridge Walworth 21:27 local · NCEI
Jun 1, 2018 1.00 inquarter 12.53 SSE Wakpala Corson 16:55 local · NCEI
Aug 10, 2016 1.25 inhalf dollar 0.84 NW Mobridge Walworth 18:05 local · NCEI
Aug 10, 2016 1.00 inquarter 0.84 NW Mobridge Walworth 18:01 local · NCEI
Jul 30, 2016 1.50 inping pong ball 2.06 ESE Mobridge Walworth 18:05 local · NCEI
Jul 30, 2016 1.50 inping pong ball 2.06 ESE Mobridge Walworth 18:05 local · NCEI
Jun 21, 2014 0.75 inpenny 0.84 NW Mobridge Walworth 19:22 local · NCEI
Jun 13, 2014 1.75 ingolf ball 2.38 SE Mobridge Walworth 21:18 local · NCEI
Jun 13, 2014 0.88 innickel 2.52 WNW Mobridge Walworth 20:30 local · NCEI
Aug 3, 2012 0.88 innickel 0.84 NW Mobridge Walworth 13:52 local · NCEI
Aug 3, 2012 1.00 inquarter 2.84 NW Mobridge Walworth 13:29 local · NCEI

Hail history near Mobridge

Questions about hail in Mobridge

How often does it hail in Mobridge, South Dakota?

38 hail reports have been logged in and within about 5 km (3 miles) of Mobridge since 1955. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #32 of 305 South Dakota places by number of reports.

When is hail season in Mobridge?

Most reports come in July, August, June. July alone accounts for 32% of all reports.

What is the largest hail recorded in Mobridge?

4.00 in (grapefruit size) on September 2, 1962. 8% of reports here were 2 inches or larger.

When did it last hail in Mobridge?

The most recent report in this data is from July 30, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was July 30, 2023.

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.