States › South Dakota › Union County › Winter
Winter in Union County, South Dakota
166 winter storms and snow events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Winter Storm, Winter Weather, Heavy Snow, Blizzard, Ice Storm, Lake-Effect Snow, Sleet.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 166 winter events in Union County, South Dakota, between 1950 and 2026, spread over 31 years.
January is the busiest month, with 40 of the recorded events. The last 20 years account for 129 events against 37 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.6% of the 10,128 winter events recorded in South Dakota; its 36.0 per 100 square miles compares with 13.4 statewide.
NCEI attributes 1 death in the county to winter storms and snow.
Some winter weather and high wind events are recorded by NWS forecast zone rather than by county; zone-recorded events whose zone is named for the county are included and marked "Forecast zone" in the table.
Compared with South Dakota
| Measure | Union County | South Dakota | US |
|---|---|---|---|
| Winter events since 1950 | 166 | 10,128 | 287,339 |
| Per 100 square miles | 36.0 | 13.4 | 8.1 |
| Per 10,000 residents | 98.4 | 113.1 | 8.7 |
| Deaths recorded | 1 | 73 | 2,509 |
| Busiest month | January | December | January |
By year
Seasonality
40Feb
38Mar
20Apr
10May
1Jun
0Jul
0Aug
0Sep
0Oct
2Nov
16Dec
39
Recorded events
All 166 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 15 Mar 2026 | Blizzard | — | — | — | — | — | Forecast zone |
| 28 Dec 2025 | Winter Weather | — | — | — | — | — | Forecast zone |
| 13 Dec 2025 | Winter Weather | — | — | — | — | — | Forecast zone |
| 6 Dec 2025 | Winter Weather | — | — | — | — | — | Forecast zone |
| 28 Nov 2025 | Winter Weather | — | — | — | — | — | Forecast zone |
| 4 Mar 2025 | Blizzard | — | — | — | — | — | Forecast zone |
| 10 Feb 2025 | Winter Weather | — | — | — | — | — | Forecast zone |
| 27 Feb 2024 | Winter Weather | — | — | — | — | — | Forecast zone |
| 18 Jan 2024 | Winter Weather | — | — | — | — | — | Forecast zone |
| 13 Jan 2024 | Blizzard | — | — | — | — | — | Forecast zone |
| 11 Jan 2024 | Winter Storm | — | — | — | — | — | Forecast zone |
| 10 Jan 2024 | Winter Weather | — | — | — | — | — | Forecast zone |
| 7 Jan 2024 | Winter Storm | — | — | — | — | — | Forecast zone |
| 25 Dec 2023 | Winter Weather | — | — | — | — | — | Forecast zone |
| 28 Oct 2023 | Winter Weather | — | — | — | — | 1 | Forecast zone |
| 22 Mar 2023 | Winter Weather | — | — | — | — | — | Forecast zone |
| 16 Mar 2023 | Winter Weather | — | — | — | — | — | Forecast zone |
| 8 Mar 2023 | Winter Weather | — | — | — | — | — | Forecast zone |
| 22 Feb 2023 | Winter Storm | — | — | — | — | — | Forecast zone |
| 27 Jan 2023 | Winter Storm | — | — | — | — | — | Forecast zone |
| 18 Jan 2023 | Winter Storm | — | — | — | — | — | Forecast zone |
| 2 Jan 2023 | Winter Storm | — | — | — | — | — | Forecast zone |
| 22 Dec 2022 | Blizzard | — | — | — | — | — | Forecast zone |
| 15 Dec 2022 | Winter Weather | — | — | — | — | — | Forecast zone |
| 8 Dec 2022 | Winter Weather | — | — | — | — | — | Forecast zone |
| 29 Nov 2022 | Winter Weather | — | — | — | — | — | Forecast zone |
| 5 Mar 2022 | Winter Weather | — | — | — | — | — | Forecast zone |
| 21 Feb 2022 | Winter Weather | — | — | — | — | — | Forecast zone |
| 10 Dec 2021 | Winter Weather | — | — | — | — | — | Forecast zone |
| 14 Mar 2021 | Winter Weather | — | — | — | — | — | Forecast zone |
| 4 Feb 2021 | Winter Weather | — | — | — | — | — | Forecast zone |
| 25 Jan 2021 | Winter Weather | — | — | — | — | — | Forecast zone |
| 23 Jan 2021 | Winter Weather | — | — | — | — | — | Forecast zone |
| 14 Jan 2021 | Blizzard | — | — | — | 1 | 2 | Forecast zone |
| 29 Dec 2020 | Winter Weather | — | — | — | — | — | Forecast zone |
| 23 Dec 2020 | Blizzard | — | — | — | — | — | Forecast zone |
| 10 Nov 2020 | Winter Storm | — | — | — | — | — | Forecast zone |
| 24 Oct 2020 | Winter Weather | — | — | — | — | — | Forecast zone |
| 12 Apr 2020 | Winter Storm | — | — | — | — | — | Forecast zone |
| 19 Mar 2020 | Winter Weather | — | — | — | — | 11 | Forecast zone |
| 19 Feb 2020 | Winter Weather | — | — | — | — | — | Forecast zone |
| 12 Feb 2020 | Winter Weather | — | — | — | — | — | Forecast zone |
| 17 Jan 2020 | Blizzard | — | — | — | — | — | Forecast zone |
| 12 Jan 2020 | Winter Weather | — | — | — | — | — | Forecast zone |
| 29 Dec 2019 | Winter Weather | — | — | — | — | — | Forecast zone |
| 28 Nov 2019 | Winter Weather | — | — | — | — | — | Forecast zone |
| 26 Nov 2019 | Winter Storm | — | — | — | — | — | Forecast zone |
| 10 Apr 2019 | Ice Storm | — | $2K | — | — | — | Forecast zone |
| 3 Feb 2019 | Winter Weather | — | — | — | — | — | Forecast zone |
| 1 Dec 2018 | Winter Storm | — | — | — | — | — | Forecast zone |
| 28 Nov 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 18 Apr 2018 | Winter Storm | — | — | — | — | — | Forecast zone |
| 14 Apr 2018 | Blizzard | — | — | — | — | — | Forecast zone |
| 8 Apr 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Apr 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 16 Mar 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 5 Mar 2018 | Blizzard | — | — | — | — | — | Forecast zone |
| 24 Feb 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 22 Feb 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 19 Feb 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 8 Feb 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 5 Feb 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 22 Jan 2018 | Blizzard | — | — | — | — | — | Forecast zone |
| 10 Jan 2018 | Winter Weather | — | — | — | — | — | Forecast zone |
| 21 Dec 2017 | Winter Weather | — | — | — | — | — | Forecast zone |
| 12 Mar 2017 | Winter Weather | — | — | — | — | — | Forecast zone |
| 23 Feb 2017 | Blizzard | — | — | — | — | — | Forecast zone |
| 24 Jan 2017 | Winter Storm | — | — | — | — | — | Forecast zone |
| 17 Jan 2017 | Winter Weather | — | — | — | — | — | Forecast zone |
| 16 Dec 2016 | Winter Weather | — | — | — | — | — | Forecast zone |
| 18 Nov 2016 | Winter Weather | — | — | — | — | — | Forecast zone |
| 23 Mar 2016 | Winter Storm | — | — | — | — | — | Forecast zone |
| 7 Feb 2016 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Feb 2016 | Winter Weather | — | — | — | — | — | Forecast zone |
| 2 Feb 2016 | Blizzard | — | — | — | — | — | Forecast zone |
| 7 Jan 2016 | Winter Weather | — | — | — | — | — | Forecast zone |
| 28 Dec 2015 | Winter Weather | — | — | — | — | — | Forecast zone |
| 26 Dec 2015 | Winter Storm | — | — | — | — | — | Forecast zone |
| 1 Dec 2015 | Winter Storm | — | — | — | — | — | Forecast zone |
| 30 Nov 2015 | Winter Storm | — | — | — | — | — | Forecast zone |
| 20 Nov 2015 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 9 Feb 2015 | Winter Weather | — | — | — | — | — | Forecast zone |
| 1 Feb 2015 | Winter Storm | — | — | — | — | — | Forecast zone |
| 31 Jan 2015 | Winter Storm | — | — | — | — | — | Forecast zone |
| 8 Jan 2015 | Winter Weather | — | — | — | — | — | Forecast zone |
| 5 Jan 2015 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Jan 2015 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Jan 2015 | Blizzard | — | — | — | — | — | Forecast zone |
| 15 Dec 2014 | Winter Weather | — | — | — | — | — | Forecast zone |
| 15 Nov 2014 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Apr 2014 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Dec 2013 | Winter Weather | — | — | — | — | — | Forecast zone |
| 1 May 2013 | Winter Weather | — | — | — | — | — | Forecast zone |
| 9 Apr 2013 | Winter Storm | — | — | — | — | — | Forecast zone |
| 10 Mar 2013 | Winter Weather | — | — | — | — | — | Forecast zone |
| 21 Feb 2013 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 27 Dec 2012 | Winter Weather | — | — | — | — | — | Forecast zone |
| 13 Feb 2012 | Winter Weather | — | — | — | — | — | Forecast zone |
| 13 Feb 2012 | Winter Weather | — | — | — | — | — | Forecast zone |
| 20 Jan 2012 | Winter Weather | — | — | — | — | — | Forecast zone |
| 3 Dec 2011 | Winter Weather | — | — | — | — | — | Forecast zone |
| 20 Feb 2011 | Ice Storm | — | — | — | — | — | Forecast zone |
| 9 Jan 2011 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 11 Dec 2010 | Blizzard | — | — | — | — | — | Forecast zone |
| 13 Feb 2010 | Winter Weather | — | — | — | — | — | Forecast zone |
| 7 Feb 2010 | Winter Weather | — | — | — | — | — | Forecast zone |
| 25 Jan 2010 | Winter Weather | — | — | — | — | — | Forecast zone |
| 20 Jan 2010 | Ice Storm | — | — | — | — | — | Forecast zone |
| 6 Jan 2010 | Winter Storm | — | — | — | — | — | Forecast zone |
| 23 Dec 2009 | Blizzard | — | — | — | — | — | Forecast zone |
| 8 Dec 2009 | Blizzard | — | — | — | — | — | Forecast zone |
| 4 Apr 2009 | Blizzard | — | — | — | — | — | Forecast zone |
| 26 Feb 2009 | Winter Weather | — | — | — | — | — | Forecast zone |
| 12 Jan 2009 | Blizzard | — | — | — | — | — | Forecast zone |
| 20 Dec 2008 | Winter Weather | — | — | — | — | — | Forecast zone |
| 19 Dec 2008 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 14 Dec 2008 | Winter Weather | — | — | — | — | — | Forecast zone |
| 8 Dec 2008 | Winter Weather | — | — | — | — | — | Forecast zone |
| 11 Feb 2008 | Winter Weather | — | — | — | — | — | Forecast zone |
| 20 Jan 2008 | Winter Weather | — | — | — | — | — | Forecast zone |
| 25 Dec 2007 | Winter Weather | — | — | — | — | — | Forecast zone |
| 8 Dec 2007 | Winter Weather | — | — | — | — | — | Forecast zone |
| 6 Dec 2007 | Winter Weather | — | — | — | — | — | Forecast zone |
| 1 Dec 2007 | Winter Storm | — | — | — | — | — | Forecast zone |
| 1 Mar 2007 | Blizzard | — | — | — | — | — | Forecast zone |
| 24 Feb 2007 | Winter Storm | — | — | — | — | — | Forecast zone |
| 12 Feb 2007 | Winter Weather | — | — | — | — | — | Forecast zone |
| 20 Jan 2007 | Winter Weather | — | — | — | — | — | Forecast zone |
| 14 Jan 2007 | Winter Storm | — | — | — | — | — | Forecast zone |
| 26 Nov 2006 | Winter Weather | — | — | — | — | — | Forecast zone |
| 19 Mar 2006 | Winter Storm | — | — | — | — | — | Forecast zone |
| 12 Mar 2006 | Winter Weather | — | — | — | — | — | Forecast zone |
| 16 Feb 2006 | Winter Weather | — | — | — | — | — | Forecast zone |
| 2 Dec 2005 | Winter Weather | — | — | — | — | — | Forecast zone |
| 30 Nov 2005 | Winter Weather | — | — | — | — | — | Forecast zone |
| 28 Nov 2005 | Winter Weather | — | — | — | — | — | Forecast zone |
| 4 Jan 2005 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 20 Dec 2004 | Winter Weather | — | — | — | — | — | Forecast zone |
| 15 Mar 2004 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 11 Feb 2004 | Winter Weather | — | — | — | — | — | Forecast zone |
| 5 Feb 2004 | Winter Storm | — | — | — | — | — | Forecast zone |
| 1 Feb 2004 | Winter Weather | — | — | — | — | — | Forecast zone |
| 25 Jan 2004 | Winter Storm | — | — | — | — | — | Forecast zone |
| 8 Dec 2003 | Winter Weather | — | — | — | — | — | Forecast zone |
| 6 Apr 2003 | Heavy Snow | — | $10K | — | — | — | Forecast zone |
| 3 Mar 2003 | Winter Weather | — | — | — | — | — | Forecast zone |
| 14 Feb 2003 | Winter Weather | — | — | — | — | — | Forecast zone |
| 9 Feb 2002 | Winter Storm | — | — | — | — | — | Forecast zone |
| 24 Feb 2001 | Winter Storm | — | — | — | — | — | Forecast zone |
| 29 Jan 2001 | Winter Storm | — | — | — | — | — | Forecast zone |
| 28 Dec 2000 | Blizzard | — | — | — | — | — | Forecast zone |
| 17 Dec 2000 | Winter Storm | — | — | — | — | — | Forecast zone |
| 16 Dec 2000 | Blizzard | — | — | — | — | — | Forecast zone |
| 11 Nov 2000 | Winter Storm | — | — | — | — | — | Forecast zone |
| 8 Mar 1999 | Winter Storm | — | — | — | — | — | Forecast zone |
| 22 Feb 1999 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 1 Jan 1999 | Winter Storm | — | — | — | — | — | Forecast zone |
| 10 Nov 1998 | Blizzard | — | $21K | — | — | — | Forecast zone |
| 3 Feb 1997 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 9 Jan 1997 | Blizzard | — | $40K | — | — | — | Forecast zone |
| 4 Jan 1997 | Blizzard | — | — | — | — | — | Forecast zone |
| 25 Dec 1996 | Heavy Snow | — | — | — | — | — | Forecast zone |
| 14 Nov 1996 | Ice Storm | — | $20K | — | — | — | Forecast zone |
| 24 Mar 1996 | Blizzard | — | $10K | — | — | — | Forecast zone |
| 17 Jan 1996 | Blizzard | — | — | — | — | — | Forecast zone |
| 10 Jan 1996 | Ice Storm | — | $10K | — | — | — | Forecast zone |
Questions and answers
How many winter events has Union County had?
166 events in the NCEI Storm Events record between 1950 and 2026. Reporting of winter storms and snow became far more complete after 1996, so early decades undercount.
When was the last recorded winter event in Union County?
15 Mar 2026 (Blizzard). Records reach NCEI about 120 days after the month ends.
What was the most damaging winter event recorded in Union County?
The blizzard of 9 Jan 1997, with property damage estimated by NCEI at $40K.
How does Union County compare with South Dakota for winter?
36.0 events per 100 square miles against 13.4 statewide; the county holds 166 of the state's 10,128 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Winter hub and the county page.