Wallace County

Population 1,441 (2025) 914 sq mi

Wallace County has recorded 47 tornadoes since 1950, 50th most of 105 counties in Kansas; the most recent was on May 8, 2024.

Hazard fingerprint for Wallace County Tornado: 66th percentile. Tropical: 0th percentile. Wildfire: 21th percentile. Flood: 18th percentile. Hail & wind: 73th percentile. Heat: 0th percentile. Cold: 62th percentile. Winter: 47th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • Tornado damage paths since 195047
  • Wildfire burn scars since 19842

At a glance

The record for Wallace County in eight numbers. Each links to its section below.

Tornadoes since 1950

47

50th of 105 in Kansas

About as many as the typical Kansas county

Details

Acres burned since 1984

2,409

54th of 105 in Kansas

2 large fires; the largest was Bradshaw, 2007

Details

Strongest tornado

F3

July 20, 1958, 3.3 mile path

Federal disaster declarations

17

Most recent: Severe Storms, Straight-Line Winds, Tornadoes, and Flooding, 2026

Details

Record high

112°F

June 24, 1971

Details

Record low

−23°F

February 15, 2021

Details

Snowiest season

62.5in

Winter of 1979-80

Costliest event since 1996

$488K

Thunderstorm Wind, June 20, 2011

Details

Tornadoes

About one every 1.6 years since 1950, one of them rated F3/EF3 or stronger.

Strongest

July 20, 1958

F3, 3.3 mile path

700 yards wide.

Most recent

Wednesday, May 8, 2024

EFU, 0.1 mile path

2 years ago.

Tornadoes by decade Doppler radar era² 1950s: 3 3 1960s: 4 4 1970s: 2 2 1980s: 2 2 1990s: 9 9 2000s: 15 15 2010s: 1 1 2020s: 11 11 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 4 A: 5 M: 17 17 J: 10 J: 6 A: 1 S: 2 O: 2 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Wallace County since 1950
May 8, 2024EFU0.15000
Jul 10, 2023EFU0.07500
May 11, 2023EF06.610000
May 11, 2023EF11.217500
May 11, 2023EF03.210000
May 11, 2023EF08.510000
Apr 22, 2022EF13.035000
Oct 12, 2021EF03.310000
May 24, 2021EFU1.02500
May 24, 2021EFU0.62500
Jun 2, 2020EFU0.63000
Apr 28, 2019EFU1.910000
May 22, 2007EF02.51000
Apr 24, 2007EF00.51000
Apr 23, 2007EF05.07500
Apr 23, 2007EF112.05000
Mar 28, 2007EF00.51000
Mar 28, 2007EF18.010000
Mar 28, 2007EF06.07500
Mar 28, 2007EF00.51000
Jun 3, 2006F00.31000
May 7, 2006F00.62500
May 7, 2006F00.31500
Sep 5, 2005F01.02500
May 16, 2004F01.57500
May 27, 2001F00.25000
Oct 31, 2000F212.024000
Jun 21, 1996F10.32000
May 3, 1994F00.12000
Jun 2, 1993F00.22000
Jun 2, 1993F12.03000
Aug 10, 1992F03.12300
Jul 15, 1992F00.11000
Jul 15, 1992F00.11000
May 28, 1991F01.05000
May 15, 1991F01.02000
May 3, 1989F00.21000
May 31, 1984F01.020000
Sep 12, 1976F10.11000
Jul 6, 1972F10.21700
Jun 22, 1968F00.150000
Jun 7, 1966F00.11000
Jul 3, 1965F00.11000
Jun 4, 1965F00.11000
Jul 20, 1958F33.370040
Jun 12, 1955F00.11000
Jun 4, 1955F00.11000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Wallace County: 0.
  2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Hurricanes and tropical storms

No tropical storm or hurricane has tracked within 100 miles since records began in 1851.

Wildfire and smoke

2,409 acres burned in 2 large fires since 1984, equal to 0.4% of the land.

Largest

November 7, 2007

Bradshaw Fire, 1,255 acres

1,255 acres inside Wallace County.

Most recent

November 7, 2007

Bradshaw Fire

1,255 acres in total.

Acres burned since 1984, cumulative 2006: 1,1542007: 1,255 2,409 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Bradshaw20071,2551,255
Unnamed20061,1531,154
  1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

Smokiest year

2021: 49 days

Heavy smoke on 22 days in 2020, the most of any year.

Last 10 years

18.8 days a year

Medium or heavy smoke, 2016 to 2025.

2025

14 days

Medium or heavy smoke. 22 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 11 2012: 22 2013: 10 2014: 1 2015: 8 2016: 3 2017: 13 2018: 14 2019: 2 2020: 40 2021: 49 49 2022: 16 2023: 16 2024: 21 2025: 14 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the county’s population centre, 2011 to 2025.
  1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Floods and flood insurance

No federal flood insurance claims are recorded for this county.

Flood events since 1996

  • Flash Flood17
  • Flood4
  • Heavy Rain1

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

Drought

In severe drought or worse for 135 of 1,581 months since 1895 (9%); the longest spell lasted 45 months.

135

Months in severe drought or worse since 1895

74

Months in extreme drought

9%

Share of all months, severe or worse

62

Drought reports to the Weather Service since 1996

Lowest reading

September 1956

−6.30, extreme drought

Longest severe spell

45 months

June 1934 to February 1938.

Latest month

September 2026

−1.85, mild drought

Last severe month: August 2026.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 0 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 0 1911: 4 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 1 1926: 6 1927: 0 1928: 0 1929: 0 1930: 0 1931: 0 1932: 0 1933: 0 1934: 7 1935: 12 12 1936: 12 1937: 12 1938: 2 1939: 3 1940: 0 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 0 1953: 0 1954: 5 1955: 8 1956: 12 1957: 2 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 7 1964: 1 1965: 2 1966: 0 1967: 0 1968: 2 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 1 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 1 2001: 0 2002: 4 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 7 2013: 8 2014: 4 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 2 2021: 0 2022: 5 2023: 0 2024: 0 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Earthquakes

6 earthquakes of magnitude 2.5 or more within 50 miles since 1984; none reached magnitude 4.

1

Magnitude 2.5+ inside the county since 1973

3

Magnitude 3+ within 50 miles since 1973

0

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

August 16, 2009

Magnitude 3.9

8 km E of Eads, Colorado; 37.9 miles away, 3.1 miles deep.

Most recent, magnitude 3 or more

March 28, 2026

Magnitude 3.1

2 km NW of Weskan, Kansas; inside the county.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 0 1975: 0 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 1 1 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 1 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 0 2025: 0 19731978198319881993199820032008201320182023
Per year, 1973 to 2025.
  1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
  2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

Severe weather and other events

889 events in the National Weather Service record, 782 of them since 1996.

247

Hail reports, 1 inch or larger

34

Hail, 2 inches or larger

197

Damaging gusts, 58 mph+

65

Winter weather events since 1996

0

Heat events since 1996

14

Cold events since 1996

Largest hail

July 20, 2009

4.25 inches

Strongest measured or estimated gust

July 20, 2023

115 mph

More event types since 1996

Other Storm Events types since 1996
Lightning100Jul 31, 2006
Dust storms and dust devils1200Apr 23, 2026

Costliest events since 1996

  1. Jun 20, 2011Thunderstorm Wind$488,000
    National Weather Service narrative

    A small thunderstorm complex produced a long-swath of significant wind and hail damage across south-central into central Wallace county. The damage began near the Wallace-Greeley county border about 13 miles SSW of Sharon Springs, and continued to about 8 miles SSE of Wallace. Approximately 25 irrigation pivots were blown over, numerous grain bins were either damaged or destroyed, utility poles were broken, some outbuildings damaged and one semi-truck blown over. Some residences reported shingle damage and broken winds due to a combination of wind and hail.

  2. Dec 29, 2006Winter Storm, Wallace$350,000
    National Weather Service narrative

    Snowfall totals across the county averaged 18-32. Highest totals occurred in a NE-SW band across the county, including the Sharon Springs and Wallace areas where 30-32 was reported. Damage costs are a preliminary combined estimate for both the Dec 20 and Dec 30 storms.

  3. Mar 28, 2007Tornado$250,000
    National Weather Service narrative

    Tornado began 5 WSW of Tribune and continued into Wallace county, Kansas, crossing the county border near Road 10. EF0 damage occurred in Greeley county. After the tornado crossed into Wallace county, it damaged three unoccupied mobile/modular homes producing EF1 damage. The tornado continued to 3 S of Weskan before dissipating. Other minor damage occurred along the path, however no homes were affected.

  4. Aug 26, 2002Thunderstorm Wind$150,000
    National Weather Service narrative

    Power poles down, 4 buildings at airport heavily damaged.

  5. Aug 26, 2002Thunderstorm Wind$100,000
    National Weather Service narrative

    Fifteen empty rail cars overturned. Power lines down, grain bins overturned, significant damage to mobile home.

  6. Jul 20, 2023Thunderstorm Wind$100,000
    National Weather Service narrative

    Two electric poles snapped, with atleast one more leaning. An old outbuilding, similiar in size to a single car garage, was blown a few feet off its foundation, and an irrigation pivot was overturned.

  7. Jul 20, 2023Thunderstorm Wind$81,000
    National Weather Service narrative

    An outbuilding in farmyard was completely destroyed. Nearby a machine shed was also destroyed. Nearby a pine tree was snapped.

  8. Jul 20, 2023Thunderstorm Wind$80,000
    National Weather Service narrative

    The tops of grain bins were bent inward. In addition the equipment attached to the grain bin was blown to the ground.

  9. Apr 2, 2015Thunderstorm Wind$65,000
    National Weather Service narrative

    Two irrigation pivots were overturned, power lines blown down, dead trees uprooted and minor damage to two farm houses. Time estimated from Doppler radar.

  10. Apr 22, 2022Thunderstorm Wind$60,000
    National Weather Service narrative

    As the line of storms moved over the town of Wallace, eight power poles were knocked down near the For Wallace Post Cemetery.

  1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

Weather records

From Sharon Springs, 0.9 miles from the county’s population centre, with records from 1893.

All-time high
112°FJun 24, 1971
All-time low
−23°FFeb 15, 2021
Warmest night
86°FJul 7, 1897
Coldest day
−4°F2 times, most recently Dec 21, 1990
Wettest day
5.35 inMay 22, 1976
Snowiest day
21.0 inJan 26, 2022
Hottest year
1894mean 59.7°F
Coldest year
1924mean 50.3°F
Wettest year
194930.49 in
Driest year
20127.62 in
Snowiest season
62.5 in1979-80
Average monthly high and low temperature and precipitation, last 30 years, Sharon Springs 32°F 45° 18° 0.4 Jan 47° 20° 0.5 Feb 57° 27° 0.8 Mar 66° 36° 1.6 Apr 75° 47° 2.4 May 87° 59° 2.6 Jun 92° 64° 3.1 Jul 89° 62° 2.8 Aug 82° 53° 1.6 Sep 68° 39° 1.2 Oct 56° 27° 0.5 Nov 45° 19° 0.5 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Days reaching 95°F per year 1974: 51 1975: 41 1976: 41 1977: 39 1978: 52 1979: 39 1980: 62 1981: 41 1982: 36 1983: 64 64 1984: 53 1985: 40 1986: 25 1987: 33 1988: 42 1989: 23 1990: 44 1991: 24 1992: 10 1993: 15 1994: 38 1995: 44 1996: 19 1997: 24 1998: 33 1999: 28 2000: 60 2001: 42 2002: 45 2003: 38 2004: 20 2005: 28 2006: 39 2007: 28 2008: 27 2009: 12 2010: 28 2011: 42 2012: 57 2013: 40 2014: 26 2015: 28 2016: 28 2017: 20 2018: 23 2019: 23 2020: 42 2023: 26 19741984199420042014
Days reaching 95°F each complete year, last 50 years. Thirty-year average: 32.4.
Snowfall by winter 1970: 24.0 in 1971: 10.0 in 1972: 34.0 in 1973: 17.8 in 1974: 13.0 in 1975: 30.0 in 1976: 21.0 in 1977: 20.0 in 1979: 62.5 in 62.5 1981: 4.0 in 1983: 52.5 in 1985: 15.0 in 1987: 50.0 in 1988: 8.5 in 1989: 30.8 in 1990: 17.5 in 1991: 17.0 in 1992: 50.5 in 1994: 26.2 in 1995: 13.0 in 1996: 19.0 in 1997: 29.0 in 1998: 15.7 in 1999: 16.3 in 2000: 35.2 in 2001: 18.0 in 2002: 14.3 in 2003: 7.2 in 2004: 15.6 in 2005: 16.7 in 2006: 60.0 in 2007: 15.6 in 2008: 19.5 in 2009: 25.7 in 2010: 19.0 in 2011: 14.0 in 2012: 25.1 in 2013: 15.0 in 2014: 12.0 in 2017: 11.0 in 2019: 14.0 in 19701983199620062019
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 21

Earliest: September 21, 1995

Median last snow

March 24

Latest: May 5, 1950

0 of 72 winters had no measurable snow.

Station Sharon Springs (USC00147397), 3,450 ft elevation, 0.9 miles from the population centre. Daily records from 1893 to August 31, 2026; 87.2% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

Federal disaster declarations

17 since 1953. The most recent: Severe Storms, Straight-Line Winds, Tornadoes, and Flooding, September 1, 2026.

Federal disaster declarations
Sep 1, 2026Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4943-KS
Sep 11, 2025Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4891-KS
May 21, 2025Severe StormSevere Winter Storm, Straight-Line Winds, Flooding, and WildfiresMajor disasterDR-4869-KS
Sep 24, 2024Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4824-KS
Oct 26, 2023Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4747-KS
May 25, 2022SnowstormSevere Winter Storms and Straight-Line WindsMajor disasterDR-4654-KS
Feb 17, 2022Severe StormSevere Storms and Straight Line WindsMajor disasterDR-4640-KS
Mar 29, 2020BiologicalCovid-19 PandemicMajor disasterDR-4504-KS
Mar 13, 2020BiologicalCovid-19EmergencyEM-3481-KS
Jun 20, 2019Severe StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding,Landslides,and MudslidesMajor disasterDR-4449-KS
Jun 16, 2017SnowstormSevere Winter Storm, Snowstorm, Straight-Line Winds, and FloodingMajor disasterDR-4319-KS
Mar 9, 2010Severe StormSevere Winter Storms and SnowstormMajor disasterDR-1885-KS
Jul 9, 2008Severe StormSevere Storms, Flooding and TornadoesMajor disasterDR-1776-KS
Dec 12, 2007Severe StormSevere Winter StormsEmergencyEM-3282-KS
Jan 7, 2007Severe StormSevere Winter StormMajor disasterDR-1675-KS
Sep 10, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3236-KS
Aug 3, 2004Severe StormSevere Storms, Flooding, and TornadoesMajor disasterDR-1535-KS

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

How this compares

Where Wallace County stands among 105 counties in Kansas and 3,143 in the United States.

Ranks
Tornadoes since 19504750 / 105458 / 3,143
Tornadoes rated F3/EF3 or stronger189 / 1051,281 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19842,40954 / 1051,138 / 3,143
Flood insurance claims0——
Flood insurance paid$0——
Disaster declarations1758 / 1052,018 / 3,143
Flood events since 19962298 / 1052,422 / 3,143
Hail and wind events since 199657532 / 105317 / 3,143
Winter storm events since 19966566 / 1051,598 / 3,143
Reported damage since 1996$2.3 million91 / 1052,730 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189513585 / 1051,323 / 3,143
Medium or heavy smoke days a year, last 10 years18.891 / 1051,132 / 3,143
Earthquakes M4+ within 50 mi since 19000——
Earthquakes M2.5+ in the county since 1973130 / 105826 / 3,143

Neighbouring counties

Neighbouring counties
Cheyenne County CO9803,9610
Greeley County44000
Kit Carson County CO13203,4140
Logan County4001,1530
Sherman County11302,5340
Wichita County37000

Sources and vintage

Every number on this page comes from these public records.

  • Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
  • Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
  • Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
  • Storm events NOAA NCEI Storm Events Database, through 2026.
  • Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
  • Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
  • Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00147397.
  • River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
  • Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
  • Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
  • Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.