Bayfield County

Population 16,787 (2025) 1,478 sq mi

Property owners in Bayfield County have filed 16 federal flood insurance claims since 1978, 56th most of 72 counties in Wisconsin.

Hazard fingerprint for Bayfield County Tornado: 8th percentile. Tropical: 0th percentile. Wildfire: 5th percentile. Flood: 21th percentile. Hail & wind: 17th percentile. Heat: 19th percentile. Cold: 73th percentile. Winter: 88th 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 19505
  • Wildfire burn scars since 19841

At a glance

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

Flood insurance claims

16

56th of 72 in Wisconsin

$137,000 paid since 1985

Details

Tornadoes since 1950

5

69th of 72 in Wisconsin

Fewer than the typical Wisconsin county, which has had 25

Details

Acres burned since 1984

1,072

5th of 72 in Wisconsin

1 large fire; the largest was Pioneer Fire, 2007

Details

Strongest tornado

F2

June 30, 1968, 39.0 mile path

Federal disaster declarations

12

Most recent: Severe Storms, Tornadoes, and Flooding, 2026

Details

Record high

105°F

Reached 2 times, most recently July 13, 1936

Details

Record low

−43°F

February 21, 1939

Details

Snowiest season

147.1in

Winter of 1982-83

Tornadoes

About one every 15 years since 1950, none rated F3/EF3 or stronger.

Strongest

June 30, 1968

F2, 39.0 mile path

300 yards wide.

Most recent

Saturday, August 13, 1988

F1, 0.1 mile path

38 years ago.

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

Every recorded tornado

Tornadoes in Bayfield County since 1950
Aug 13, 1988F10.15000
Apr 27, 1984F00.31000
Jul 3, 1983F13.05720
Jul 3, 1983F00.35000
Jun 30, 1968F239.030020
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Bayfield 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

1,072 acres burned in 1 large fire since 1984, equal to 0.1% of the land.

Largest

April 29, 2007

Pioneer Fire, 1,074 acres

1,072 acres inside Bayfield County.

Most recent

April 29, 2007

Pioneer Fire

1,074 acres in total.

Acres burned since 1984, cumulative 2007: 1,072 1,072 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Pioneer Fire20071,0721,074
  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

2023: 86 days

Heavy smoke on 25 days in 2021, the most of any year.

Last 10 years

32.3 days a year

Medium or heavy smoke, 2016 to 2025.

2025

32 days

Medium or heavy smoke. 48 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 7 2012: 15 2013: 14 2014: 14 2015: 21 2016: 4 2017: 18 2018: 28 2019: 20 2020: 16 2021: 55 2022: 19 2023: 86 86 2024: 45 2025: 32 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

16 federal flood insurance claims since 1985, with $137,000 paid.

Federal flood insurance claims by year 2016: 5 5 2016
Claims per year since 1985. Years with fewer than five claims are not shown.

Most claims in one year

2016: 5 claims

$72,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
548215$12,000
548325$44,000

Flood events since 1996

  • Flash Flood33
  • Flood5
  • Lakeshore Flood2

1 death recorded in flood events since 1996.

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

Drought

In severe drought or worse for 140 of 1,581 months since 1895 (9%); the longest spell lasted 17 months.

140

Months in severe drought or worse since 1895

54

Months in extreme drought

9%

Share of all months, severe or worse

45

Drought reports to the Weather Service since 1996

Lowest reading

February 1977

−7.29, extreme drought

Longest severe spell

17 months

June 1910 to October 1911.

Latest month

September 2026

−4.63, extreme drought

Months in severe drought or worse, by year 1895: 0 1896: 1 1897: 0 1898: 1 1899: 0 1900: 0 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 1 1910: 7 1911: 10 10 1912: 2 1913: 1 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 2 1924: 3 1925: 5 1926: 1 1927: 0 1928: 0 1929: 0 1930: 1 1931: 1 1932: 0 1933: 6 1934: 8 1935: 0 1936: 3 1937: 0 1938: 0 1939: 2 1940: 4 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 1 1948: 6 1949: 4 1950: 0 1951: 0 1952: 0 1953: 0 1954: 0 1955: 0 1956: 0 1957: 1 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 4 1964: 3 1965: 0 1966: 0 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 1 1976: 5 1977: 5 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 5 1988: 6 1989: 0 1990: 1 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 1 1998: 4 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 5 2007: 9 2008: 0 2009: 2 2010: 2 2011: 0 2012: 1 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 5 2022: 2 2023: 0 2024: 1 2025: 3 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

No earthquake of magnitude 2.5 or more is recorded within 50 miles of the county in the USGS catalogue, which begins in 1900.

Severe weather and other events

594 events in the National Weather Service record, 552 of them since 1996.

79

Hail reports, 1 inch or larger

8

Hail, 2 inches or larger

152

Damaging gusts, 58 mph+

184

Winter weather events since 1996

3

Heat events since 1996

23

Cold events since 1996

Largest hail

April 18, 2004

3.00 inches

Strongest measured or estimated gust

July 21, 2016

90 mph

Costliest events since 1996

  1. Jun 17, 2018Flash Flood$2.2 million
    National Weather Service narrative

    US Highway 2 was washed out at North Fish Creek west of Tomich Road east of Ino. The culvert failed and eroded the road on both sides.

  2. Jul 30, 2006Thunderstorm Wind$1.5 million
    National Weather Service narrative

    Downburst winds hit the Bayfield waterfront where an art fair was in progress at Memorial Park. Most of the ninety fair tents were demolished and art pieces were tossed into Lake Superior. A woman broke her hand while a man received a large gash on his hand. Numerous large trees were blown down in Bayfield. The local Catholic church lost a portion of its roof, resulting in damage estimated at $300,000. There was an unverified report of a private weather system clocking the wind at 99 mph before it became inoperable. At the Apostle Island Marina numerous boats lost their canvas coverings. Many boats lost their stanchions after being tipped under the docks by the strong winds.…

  3. Jul 5, 1999Flash Flood$500,000
    National Weather Service narrative

    Highways and bridges near Port Wing, Bayfield, and Washburn were flooded by heavy rain from slow-moving thunderstorms.

  4. Jul 14, 1999Flash Flood$500,000
    National Weather Service narrative

    Heavy thunderstorm rains caused U.S. Highway 2 and State Highway 118 to flood and partially wash out.

  5. Jun 17, 2006Thunderstorm Wind$400,000
    National Weather Service narrative

    Major wind damage to docks and a few boats occurred at two marinas. Many docks were destroyed. One 40 foot boat was destroyed. There was also three-quarter inch hail and some downed trees.

  6. Oct 4, 2005Flash Flood$345,000
    National Weather Service narrative

    Thunderstorms producing heavy rain moved into Bayfield County dropping 3.00 inches in the town of Bayfield and 3.61 inches in the town of Washburn. Several roads were closed as the Fish Creek overtopped its banks between Moquah and Ashland. Around one foot of water covered County Road G and Highway 2. The property damage estimate was to roads and water treatments.

  7. Jun 18, 2024Flash Flood$100,000
    National Weather Service narrative

    Areas of flooding and washed out roads were reported in the City of Bayfield.

  8. Jun 19, 2024Flash Flood$50,000
    National Weather Service narrative

    A 5 foot wide section of State Highway 13 just east of Herbster washed out when the culvert underneath failed. A car drove into the washout and the driver was trapped but only had minor injuries.

  9. Apr 11, 2023Flood$16,000
    National Weather Service narrative

    Warm temperatures early in April led to rapid snowmelt of a well above normal snowpack across the region. Additionally, heavy rainfall on top of the snowpack led to additional high runoff across the county as well. Roads began to be impacted on the 11th with water overtopping low spots leading to washouts and failed culverts. Temperatures cooled during the middle of the month along with a heavy snow event the 16th into the 17th. This allowed the runoff to slow and water levels to drop. However, water levels rose again later in the month as this new snow melted as well. Numerous road closures were reported across the entire county due to failed culverts, washouts and gravel roads…

  10. Oct 26, 2017Lakeshore Flood, Bayfield$15,000
    National Weather Service narrative

    A boardwalk along the south shore of Lake Superior was destroyed by strong winds and waves that flowed onshore in Port Wing.

  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 Brule Rs, 23.5 miles from the county’s population centre, with records from 1928.

All-time high
105°F2 times, most recently Jul 13, 1936
All-time low
−43°FFeb 21, 1939
Warmest night
78°FMay 29, 2006
Coldest day
−18°FJan 5, 1942
Wettest day
5.36 inJul 9, 2020
Snowiest day
21.0 inDec 28, 1982
Hottest year
1998mean 45.1°F
Coldest year
2014mean 37.4°F
Wettest year
195144.96 in
Driest year
197616.93 in
Snowiest season
147.1 in1982-83
Average monthly high and low temperature and precipitation, last 30 years, Brule Rs 32°F 21° 3° 0.9 Jan 26° 5° 1.2 Feb 39° 17° 1.4 Mar 51° 29° 2.6 Apr 66° 39° 2.8 May 74° 49° 3.5 Jun 79° 55° 3.4 Jul 76° 54° 3.8 Aug 69° 46° 2.9 Sep 54° 35° 2.8 Oct 40° 24° 1.6 Nov 26° 11° 1.6 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1998: 163 1999: 176 2000: 182 2001: 179 2002: 205 2003: 201 2005: 178 2009: 194 2010: 184 2011: 198 2012: 185 2013: 209 209 2014: 200 2015: 191 2017: 187 2019: 187 2020: 207 2021: 182 2022: 184 2023: 171 2024: 167 2025: 185 199820122024
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 187.0.
Snowfall by winter 1976: 52.4 in 1977: 69.4 in 1978: 92.0 in 1979: 69.3 in 1980: 39.5 in 1981: 97.6 in 1982: 147.1 in 147.1 1983: 127.6 in 1984: 96.3 in 1986: 48.5 in 1988: 115.6 in 1989: 38.2 in 1990: 38.5 in 1991: 119.2 in 1992: 42.6 in 1993: 84.0 in 1994: 55.9 in 1995: 105.6 in 1996: 120.4 in 2002: 62.5 in 2003: 70.0 in 2005: 95.5 in 2007: 65.5 in 2008: 73.5 in 2009: 62.5 in 2016: 64.5 in 2019: 81.8 in 2020: 54.3 in 2023: 33.5 in 2024: 63.8 in 2025: 97.9 in 1976198820032025
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 4

Earliest: October 10, 2009

Median last snow

April 12

Latest: May 10, 1961

0 of 55 winters had no measurable snow.

Station Brule Rs (USC00471131), 1,000 ft elevation, 23.5 miles from the population centre. Daily records from 1928 to October 19, 2026; 91.8% 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

12 since 1953. The most recent: Severe Storms, Tornadoes, and Flooding, June 30, 2026.

Federal disaster declarations
Jun 30, 2026FloodSevere Storms, Tornadoes, and FloodingMajor disasterDR-4923-WI
Apr 4, 2020BiologicalCovid-19 PandemicMajor disasterDR-4520-WI
Mar 13, 2020BiologicalCovid-19EmergencyEM-3454-WI
Aug 10, 2018FloodSevere Storms, Straight-Line Winds, and FloodingMajor disasterDR-4383-WI
Aug 9, 2016Severe StormSevere Storms and FloodingMajor disasterDR-4276-WI
Aug 8, 2013Severe StormSevere Storms, Flooding, and MudslidesMajor disasterDR-4141-WI
Aug 2, 2012Severe StormSevere Storms and FloodingMajor disasterDR-4076-WI
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3249-WI
May 11, 2001FloodFlooding, Severe Storms and TornadoesMajor disasterDR-1369-WI
Aug 16, 1999FloodWi-Flood-07/20/99Major disasterDR-1284-WI
Jun 17, 1976DroughtDroughtEmergencyEM-3014-WI
Sep 10, 1972FloodHeavy Rains & FloodingMajor disasterDR-352-WI

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 Bayfield County stands among 72 counties in Wisconsin and 3,143 in the United States.

Ranks
Tornadoes since 1950569 / 722,612 / 3,143
Tornadoes rated F3/EF3 or stronger0——
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19841,0725 / 721,302 / 3,143
Flood insurance claims1656 / 722,156 / 3,143
Flood insurance paid$137,00055 / 722,258 / 3,143
Disaster declarations1232 / 722,631 / 3,143
Flood events since 19964029 / 721,725 / 3,143
Hail and wind events since 199625639 / 721,521 / 3,143
Winter storm events since 199618423 / 72380 / 3,143
Reported damage since 1996$5.7 million58 / 722,311 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189514010 / 721,189 / 3,143
Medium or heavy smoke days a year, last 10 years32.31 / 72110 / 3,143
Earthquakes M4+ within 50 mi since 19000——
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Ashland County110011
Douglas County1307,29821
Sawyer County9008
Washburn County80024

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 USC00471131.
  • 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.