Ashland County
Population 16,203 (2025) 1,045 sq mi
Property owners in Ashland County have filed 11 federal flood insurance claims since 1978, 59th most of 72 counties in Wisconsin.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195011
At a glance
The record for Ashland County in eight numbers. Each links to its section below.
Tornadoes since 1950
11
58th of 72 in Wisconsin
Fewer than the typical Wisconsin county, which has had 25
DetailsStrongest tornado
F2
August 14, 1961, 4.5 mile path
Snowiest season
147.1in
Winter of 1982-83
Tornadoes
About one every 6.9 years since 1950, none rated F3/EF3 or stronger.
Strongest
August 14, 1961
F2, 4.5 mile path
400 yards wide.
Most recent
Saturday, July 18, 2020
EF1, 0.6 mile path
6 years ago.
Every recorded tornado
| Jul 18, 2020 | EF1 | 0.6 | 0 | 0 |
| Aug 11, 2014 | EF0 | 0.1 | 0 | 0 |
| Jul 27, 2010 | EF0 | 1.9 | 0 | 0 |
| Jul 27, 2010 | EF2 | 0.9 | 0 | 0 |
| May 12, 1998 | F0 | 2.0 | 0 | 0 |
| Sep 16, 1992 | F0 | 6.5 | 0 | 0 |
| Aug 3, 1988 | F0 | 4.0 | 0 | 0 |
| Jul 3, 1983 | F0 | 0.3 | 0 | 0 |
| Jun 30, 1983 | F0 | 0.1 | 0 | 0 |
| Jul 19, 1980 | F1 | 2.0 | 0 | 0 |
| Aug 14, 1961 | F2 | 4.5 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Ashland County: 0.
- 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
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 85 days
Heavy smoke on 24 days in 2021, the most of any year.
Last 10 years
31.0 days a year
Medium or heavy smoke, 2016 to 2025.
2025
29 days
Medium or heavy smoke. 47 so far in 2026.
- 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
11 federal flood insurance claims since 1994, with $489,000 paid.
Flood events since 1996
- Flash Flood15
- Flood10
- Lakeshore Flood2
2 deaths 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.
River crests
Most severe crest
July 12, 2016
Bad River (WI) near Odanah, 27.28 ft
11.28 feet above the 16.0 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
April 13, 2023
Tyler Forks River near Mellen, 11.54 ft
Moderate flooding.
River gauges
| Bad River (WI) at Odanah | 8.5 | 11.78 ft | 1 |
| Bad River (WI) near Odanah | 16.0 | 27.28 ft | 3 |
| Tyler Forks River near Mellen | 9.0 | 14.20 ft | 2 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 170 of 1,581 months since 1895 (11%); the longest spell lasted 18 months.
170
Months in severe drought or worse since 1895
76
Months in extreme drought
11%
Share of all months, severe or worse
49
Drought reports to the Weather Service since 1996
Lowest reading
April 1911
−7.43, extreme drought
Longest severe spell
18 months
June 1910 to November 1911.
Latest month
September 2026
−4.87, extreme drought
- 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
1 earthquake of magnitude 2.5 or more within 50 miles since 1988; none reached magnitude 4.
0
Magnitude 2.5+ inside the county since 1973
1
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
January 14, 1988
Magnitude 3.6
21 km NNE of Marenisco, Michigan; 42.9 miles away, 3.1 miles deep.
Most recent, magnitude 3 or more
January 14, 1988
Magnitude 3.6
21 km NNE of Marenisco, Michigan; 42.9 miles away.
- 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).
- 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
496 events in the National Weather Service record, 458 of them since 1996.
44
Hail reports, 1 inch or larger
3
Hail, 2 inches or larger
87
Damaging gusts, 58 mph+
201
Winter weather events since 1996
3
Heat events since 1996
19
Cold events since 1996
Largest hail
May 5, 1962
3.00 inches
Strongest measured or estimated gust
May 27, 1991
104 mph
More event types since 1996
| Rip currents | 1 | 1 |
| High surf and sneaker waves | 1 | 2 |
| Lightning | 2 | 0 |
Costliest events since 1996
- Apr 14, 2002Flood, Ashland$189,000
National Weather Service narrative
Dense snowpack, temperatures in the 80s, and heavy rain contributed to widespread flooding in central and southern Ashland County. Both the Bad and Chippewa Rivers flooded, closing roads in Mellin and Glidden. In Glidden, 20 homes and businesses were damaged by floodwaters of the north fork of the Chippewa River. A 100-yard stretch of Highway 13 was closed due to high water. Highway 169 between Mellin and U.S. Highway 2 was closed. Other small streams and creeks overflowed their banks and caused minor lowland flooding.
- Jun 6, 1999Thunderstorm Wind$150,000
National Weather Service narrative
Severe thunderstorm winds caused extensive damage at the Ashland county fairgrounds. A cow barn was destroyed and the grandstand was severely damaged. Some debris was blown 300 feet. Many trees were blown down. Half of a double-wide modular home was overturned elsewhere in Marengo. The wind speed was estimated based on the amount of damage.
- Jul 1, 2011Lightning$80,000
National Weather Service narrative
A home sustained an estimated $80,000 worth of damage after lightning struck it, causing a fire. Lightning struck a gas meter located on the side of the house, igniting natural gas.
- Jul 1, 2011Thunderstorm Wind$50,000
National Weather Service narrative
The winds blew down numerous trees. Several homes were damaged from falling trees. There was also some structural damage at the Ashland County fairgrounds.
- May 22, 2011Thunderstorm Wind$10,000
National Weather Service narrative
There was minor siding damage to a home, a metal barn collapsed, and some trees were blown down along Balsam Lane to the east-southeast of Butternut. The metal barn probably collapsed at a lower wind speed than would normally be expected, given a lack of damage to nearby pine trees. Estimated wind gusts in this area were around 80 mph.
- Oct 26, 2010Strong Wind, Ashland$5,000
National Weather Service narrative
The strong wind gusts caused scattered power outages county-wide. According to the sheriffs department, the most heavily affected areas in the county were in the towns of Chippewa and Jacobs. Lots of trees were blown down, along with trees blown onto power lines. Some damage was also reported on Madeline Island.
- Aug 13, 2010Thunderstorm Wind$3,000
National Weather Service narrative
Severe thunderstorms blew through northwest and north-central Wisconsin...producing damaging winds and some hail.
- Jul 14, 2010Thunderstorm Wind$2,000
National Weather Service narrative
Power lines were reported down along U.S. Highway 13.
- May 9, 2011High Wind, Ashland$2,000
National Weather Service narrative
Strong winds uprooted trees, blew down some tree limbs and tree branches, and brought down a few power lines. This sporadic damage was confirmed from spotter and public reports, as well as local newspaper articles. The strong winds uprooted large pine trees at the Mellen Union Cemetery, and the root structures overturned some grave stones. Amateur radio reported a satellite dish and a few shingles blown off a house around Mellen. Wind gusts at individual stations were measured at 43 mph in High Bridge, and 46 mph in Glidden. However, damage suggests that isolated areas probably received wind gusts up to 60 knots (69 mph).
- Apr 10, 2011Hail$1,500
National Weather Service narrative
Oblong and spiky hail stones up to 3 inches in diameter fell near the town of Odanah.
- 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, 38.6 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
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, 38.6 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
14 since 1953. The most recent: Covid-19 Pandemic, April 4, 2020.
| Apr 4, 2020 | Biological | DR-4520-WI |
| Mar 13, 2020 | Biological | EM-3454-WI |
| Aug 10, 2018 | Flood | DR-4383-WI |
| Aug 9, 2016 | Severe Storm | DR-4276-WI |
| Aug 8, 2013 | Severe Storm | DR-4141-WI |
| Aug 2, 2012 | Severe Storm | DR-4076-WI |
| Sep 13, 2005 | Hurricane | EM-3249-WI |
| May 11, 2001 | Flood | DR-1369-WI |
| Jun 24, 2000 | Severe Storm | DR-1332-WI |
| Aug 16, 1999 | Flood | DR-1284-WI |
| Jun 17, 1976 | Drought | EM-3014-WI |
| Sep 10, 1972 | Flood | DR-352-WI |
| May 1, 1969 | Flood | DR-260-WI |
| Apr 21, 1965 | Tornado | DR-192-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 Ashland County stands among 72 counties in Wisconsin and 3,143 in the United States.
| Tornadoes since 1950 | 11 | 58 / 72 |
| Tornadoes rated F3/EF3 or stronger | 0 | — |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 11 | 59 / 72 |
| Flood insurance paid | $489,000 | 38 / 72 |
| Disaster declarations | 14 | 20 / 72 |
| Flood events since 1996 | 27 | 39 / 72 |
| Hail and wind events since 1996 | 151 | 65 / 72 |
| Winter storm events since 1996 | 201 | 22 / 72 |
| Reported damage since 1996 | $498,000 | 72 / 72 |
| River crests at major flood stage | 6 | 18 / 72 |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 170 | 2 / 72 |
| Medium or heavy smoke days a year, last 10 years | 31.0 | 3 / 72 |
| Earthquakes M4+ within 50 mi since 1900 | 0 | — |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Bayfield County | 5 | 0 |
| Iron County | 7 | 0 |
| Price County | 28 | 0 |
| Sawyer County | 9 | 0 |
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.