Hail History

Hail history for McPherson County, South Dakota

Every NOAA hail report filed in McPherson County since 1955, with preliminary National Weather Service reports to November 3, 2026.

Readout · McPherson County

Last hail
Jul 24, 2026
2.00 in, hen egg size
Hail days, last 5 years
9
since Nov 3, 2021 · 17 reports
Largest ever
4.50 in
softball · Jul 9, 2002

201 reports on 111 days since 1955 · #35 of 67 South Dakota counties

Hail map · McPherson County

Leola Eureka 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
197 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 McPherson County

The latest hail report in McPherson County is from July 24, 2026, 2.00 in (hen egg size). Since November 3, 2021 there have been 9 separate hail days; the biggest stones in that time were 2.00 in on July 24, 2026.

Over the 20 years 2006–2025, McPherson County logged 135 reports on 62 hail days, about 6.8 reports a year. That is 23% more than the median South Dakota county (5.5 a year) and ranks #35 of 67 South Dakota counties for all-time reports. McPherson County holds 1% of all 17,223 hail reports in South Dakota.

10% 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 4.50 in (softball) on July 9, 2002 near 14 NE Leola.

Reports were down 31% in 2016–2025 (55) compared with 2006–2015 (80). The busiest year was 2015, with 21 reports on 4 days. Hail here peaks in July (33% of reports); 38% fall between April and June.

Reports a year 2006–2025 average

  • McPherson County 6.8
  • Median South Dakota county 5.5

Hail days 2006–2025

  • McPherson County 62
  • Median South Dakota county 54

Share 2 in or larger of sized reports

  • McPherson County 10%
  • Median South Dakota county 8%

Hail over time

0102030 1955: 1 reports, largest 1.50 in 1960 1967: 1 reports, largest 2.50 in 1970: 1 reports, largest 2.00 in 1970 1971: 1 reports, largest 1.20 in 1980 1986: 1 reports, largest 1.75 in 1988: 1 reports, largest 1.75 in 1989: 1 reports, largest 0.75 in 1990: 1 reports, largest 0.75 in 1990 1992: 4 reports, largest 0.75 in 1993: 2 reports, largest 1.00 in 1995: 2 reports, largest 0.75 in 1996: 6 reports, largest 1.75 in 1997: 2 reports, largest 1.00 in 1999: 1 reports, largest 0.75 in 2000 2001: 4 reports, largest 2.50 in 2002: 9 reports, largest 4.50 in 2003: 6 reports, largest 1.50 in 2004: 6 reports, largest 1.00 in 2005: 11 reports, largest 1.75 in 2006: 21 reports, largest 2.50 in 2007: 8 reports, largest 1.75 in 2008: 8 reports, largest 1.75 in 2009: 7 reports, largest 1.00 in 2010: 5 reports, largest 1.25 in 2010 2011: 3 reports, largest 1.75 in 2012: 3 reports, largest 1.75 in 2013: 2 reports, largest 1.00 in 2014: 2 reports, largest 1.75 in 2015: 21 reports, largest 2.75 in 2016: 14 reports, largest 2.75 in 2017: 5 reports, largest 1.50 in 2018: 12 reports, largest 1.75 in 2019: 3 reports, largest 1.75 in 2020: 8 reports, largest 1.50 in 2020 2021: 1 reports, largest 1.00 in 2022: 6 reports, largest 1.75 in 2023: 3 reports, largest 1.00 in 2025: 3 reports, largest 1.50 in 2026: 5 reports, largest 2.00 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.
020406080 Jan Feb Mar April: 4 reports (2%) Apr May: 25 reports (12%) May June: 47 reports (23%) Jun July: 66 reports (33%) Jul August: 49 reports (24%) Aug September: 10 reports (5%) Sep Oct Nov Dec
All 201 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 23 5
2025 3 3
2024 0
2023 21 3
2022 24 6
2021 1 1
2020 152 8
2019 21 3
2018 7113 12
2017 14 5

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 24, 2026 1 2.00 in —
Jul 4, 2026 2 1.00 in —
May 31, 2026 2 1.00 in —
Aug 5, 2025 3 1.50 in —
Aug 2, 2023 1 1.00 in —
Jul 7, 2023 2 1.00 in —
Jul 21, 2022 2 1.75 in —
Jul 3, 2022 2 1.25 in —
Jun 14, 2022 2 1.75 in —

Largest hail on record

Largest hail reports in McPherson County
Date Size Location Time · source
Jul 9, 2002 4.50 insoftball 14 NE Leola 17:15 local · NCEI
Aug 9, 2016 2.75 inbaseball 8.68 E Madra 23:15 local · NCEI
Jul 17, 2015 2.75 inbaseball 2.41 E Leola 16:31 local · NCEI
Jul 17, 2015 2.75 inbaseball 0.48 E Leola 16:30 local · NCEI
Jul 17, 2015 2.75 inbaseball 2.37 E Leola 16:30 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in McPherson County
Date Size Location Time · source
Jul 24, 2026 2.00 inhen egg 5.17 SE Spring Creek Colony 20:02 local · NCEI
Jul 4, 2026 1.00 inquarter 10.62 E Hillsview 15:18 local · NCEI
Jul 4, 2026 1.00 inquarter 5.05 NE Eureka Muni Arpt 14:22 local · NCEI
May 31, 2026 1.00 inquarter 2.81 S Leola 17:20 local · NCEI
May 31, 2026 1.00 inquarter 0.48 E Leola 17:20 local · NCEI
Aug 5, 2025 1.50 inping pong ball 0.48 E Wetonka 19:37 local · NCEI
Aug 5, 2025 1.00 inquarter 5.9 SW Langlake 18:20 local · NCEI
Aug 5, 2025 0.88 innickel 3.85 W Long Lake 17:44 local · NCEI
Aug 2, 2023 1.00 inquarter 1.69 NE Hillsview 00:45 local · NCEI
Jul 7, 2023 0.88 innickel 2.29 NNE Hillsview 15:15 local · NCEI
Jul 7, 2023 1.00 inquarter 2.78 WSW Hillsview 15:11 local · NCEI
Jul 21, 2022 1.00 inquarter 10.16 SW Langlake 19:06 local · NCEI

Cities and towns in McPherson County

PlaceReportsLargest
Leola282.75 in
Eureka252.00 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
Hillsview86Aug 2, 2023
Long Lake87Sep 19, 2017
Wetonka76Aug 5, 2025
Deerfield Colony66Jul 23, 2015
Spring Creek Colony22Apr 12, 2010
Grassland Colony11Jul 4, 2011

Questions about hail in McPherson County

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

201 hail reports have been logged in McPherson County since 1955. Over the 20 years 2006–2025 that averages 6.8 reports a year. That ranks #35 of 67 South Dakota counties by number of reports.

When is hail season in McPherson County?

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

What is the largest hail recorded in McPherson County?

4.50 in (softball size) on July 9, 2002 near 14 NE Leola. 10% of reports here were 2 inches or larger.

When did it last hail in McPherson County?

The most recent report in this data is from July 24, 2026 (2.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

9 separate days with hail reports since November 3, 2021, adding up to 17 reports. The most recent was July 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.