Ionia County
Population 66,557 (2025) 571 sq mi
Ionia County has recorded 27 tornadoes since 1950, 13th most of 83 counties in Michigan; the most recent was on May 15, 2025.
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 195027
At a glance
The record for Ionia County in eight numbers. Each links to its section below.
Strongest tornado
F2
August 5, 1968, 52.7 mile path
Snowiest season
116.0in
Winter of 2013-14
Tornadoes
About one every 2.8 years since 1950, none rated F3/EF3 or stronger.
Strongest
August 5, 1968
F2, 52.7 mile path
50 yards wide.
Most recent
Thursday, May 15, 2025
EF1, 14.9 mile path
Within the past year.
Every recorded tornado
| May 15, 2025 | EF1 | 14.9 | 0 | 0 |
| Mar 30, 2025 | EF0 | 0.5 | 0 | 0 |
| Mar 30, 2025 | EF0 | 2.2 | 0 | 0 |
| Jun 26, 2021 | EF1 | 5.0 | 0 | 0 |
| Jun 26, 2021 | EF0 | 1.1 | 0 | 0 |
| Apr 10, 2017 | EF1 | 5.3 | 0 | 0 |
| Aug 20, 2016 | EF1 | 7.8 | 0 | 0 |
| Jun 22, 2015 | EF1 | 4.6 | 5 | 0 |
| Jul 6, 2014 | EF0 | 0.8 | 0 | 0 |
| Jul 6, 2014 | EF0 | 1.0 | 0 | 0 |
| Sep 23, 2006 | F0 | 0.5 | 0 | 0 |
| May 21, 2001 | F0 | 1.0 | 0 | 0 |
| Jun 17, 1992 | F0 | 0.1 | 0 | 0 |
| Jun 17, 1992 | F0 | 0.2 | 0 | 0 |
| Jun 17, 1992 | F0 | 0.1 | 0 | 0 |
| Jun 17, 1992 | F0 | 0.1 | 0 | 0 |
| Jun 17, 1992 | F1 | 0.1 | 0 | 0 |
| Sep 14, 1990 | F1 | 2.0 | 0 | 0 |
| Nov 27, 1989 | F2 | 6.0 | 0 | 0 |
| Aug 14, 1988 | F1 | 1.0 | 1 | 0 |
| Sep 26, 1986 | F0 | 0.1 | 0 | 0 |
| Jun 7, 1980 | F1 | 0.1 | 0 | 0 |
| Mar 20, 1976 | F2 | 9.9 | 0 | 0 |
| May 27, 1973 | F1 | 0.2 | 0 | 0 |
| Aug 5, 1968 | F2 | 52.7 | 0 | 0 |
| Apr 21, 1967 | F2 | 0.1 | 6 | 0 |
| May 27, 1960 | F1 | 2.0 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Ionia 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: 80 days
Heavy smoke on 18 days in 2023, the most of any year.
Last 10 years
25.1 days a year
Medium or heavy smoke, 2016 to 2025.
2025
28 days
Medium or heavy smoke. 37 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
37 federal flood insurance claims since 1981, with $292,000 paid.
Most claims in one year
2019: 9 claims
$117,000 paid.
2nd most
2004: 7 claims
$21,000 paid.
3rd most
2013: 7 claims
$63,000 paid.
Claims by ZIP code
| 48846 | 15 | $105,000 |
| 48875 | 15 | $155,000 |
Flood events since 1996
- Flood6
- Flash Flood3
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
April 20, 2013
Grand River at Ionia, 24.69 ft
3.69 feet above the 21.0 ft flood stage; moderate flooding by today’s categories.
Most recent moderate or major crest
April 7, 2023
Grand River at Ionia, 23.02 ft
Moderate flooding.
| Apr 20, 2013 | Grand River at Ionia | 24.69 | +3.69 |
| Feb 23, 2018 | Grand River at Ionia | 24.40 | +3.40 |
| Mar 21, 1948 | Grand River at Ionia | 24.30 | +3.30 |
| Apr 7, 1947 | Grand River at Ionia | 23.60 | +2.60 |
| Apr 1, 1960 | Grand River at Ionia | 23.43 | +2.43 |
| May 25, 2004 | Grand River at Ionia | 23.41 | +2.41 |
| May 20, 2020 | Grand River at Ionia | 23.20 | +2.20 |
| Mar 6, 1976 | Grand River at Ionia | 23.19 | +2.19 |
| Oct 3, 1981 | Grand River at Ionia | 23.18 | +2.18 |
| Feb 27, 1985 | Grand River at Ionia | 23.15 | +2.15 |
| Mar 18, 1942 | Grand River at Ionia | 23.10 | +2.10 |
| Apr 7, 2023 | Grand River at Ionia | 23.02 | +2.02 |
| Oct 3, 1986 | Grand River at Ionia | 23.01 | +2.01 |
| Mar 16, 1982 | Grand River at Ionia | 22.45 | +1.45 |
| Mar 17, 1943 | Grand River at Ionia | 22.40 | +1.40 |
| Apr 8, 2017 | Grand River at Ionia | 22.12 | +1.12 |
| Dec 29, 2008 | Grand River at Ionia | 22.10 | +1.10 |
| Feb 23, 1997 | Grand River at Ionia | 22.04 | +1.04 |
| Apr 21, 1975 | Grand River at Portland | 12.98 | +0.98 |
| May 11, 1956 | Grand River at Ionia | 21.87 | +0.87 |
| May 24, 2004 | Grand River at Portland | 12.84 | +0.84 |
| Apr 13, 2013 | Grand River at Ionia | 21.79 | +0.79 |
| Mar 29, 1950 | Grand River at Ionia | 21.78 | +0.78 |
| Mar 15, 1986 | Grand River at Ionia | 21.63 | +0.63 |
| Feb 23, 2018 | Grand River at Portland | 12.62 | +0.62 |
River gauges
| Flat River at Smyrna | 8.5 | 9.05 ft | 0 |
| Grand River at Ionia | 21.0 | 24.69 ft | 0 |
| Grand River at Portland | 12.0 | 12.98 ft | 0 |
- 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 81 of 1,581 months since 1895 (5%); the longest spell lasted 20 months.
81
Months in severe drought or worse since 1895
38
Months in extreme drought
5%
Share of all months, severe or worse
Lowest reading
March 1945
−5.86, extreme drought
Longest severe spell
20 months
November 1962 to June 1964.
Latest month
September 2026
+0.79, incipient wet spell
Last severe month: October 2005.
- 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 4 or more within 50 miles since 1900; the largest was magnitude 4.2 in 2015.
0
Magnitude 2.5+ inside the county since 1973
3
Magnitude 3+ within 50 miles since 1973
1
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
May 2, 2015
Magnitude 4.2
5 km S of Galesburg, Michigan; 37.4 miles away, 2.8 miles deep.
Most recent, magnitude 3 or more
June 30, 2015
Magnitude 3.3
5 km NNE of Burlington, Michigan; 44.4 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| May 2, 2015 | 4.2 | 37.4 |
- 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
310 events in the National Weather Service record, 234 of them since 1996.
23
Hail reports, 1 inch or larger
6
Hail, 2 inches or larger
100
Damaging gusts, 58 mph+
68
Winter weather events since 1996
0
Heat events since 1996
0
Cold events since 1996
Largest hail
June 11, 1968
2.50 inches
Strongest measured or estimated gust
July 7, 1991
85 mph
More event types since 1996
| Lightning | 1 | 0 |
| Dense fog and smoke | 1 | 0 |
Costliest events since 1996
- Aug 24, 2023Thunderstorm Wind$10.0 million
National Weather Service narrative
Numerous trees and tree limbs were blown down. 15 power poles were snapped and numerous trees were snapped or uprooted in Saranac. In Portland several trees were also snapped or uprooted.
- Mar 8, 2017High Wind, Ionia$10.0 million
National Weather Service narrative
A 62 mph peak wind gust was measured at the Ionia airport. Peak wind gusts in the 60 to 70 mph range resulted in numerous downed trees and limbs and power lines and widespread power outages.
- Apr 17, 2013Flood$7.0 million
National Weather Service narrative
Heavy rainfall caused significant flooding on rivers and streams across Ionia county.
- Feb 5, 2019Ice Storm, Ionia$5.0 million
National Weather Service narrative
A half to three quarters of an inch of freezing rain resulted in numerous downed trees, limbs, power lines and widespread power outages.
- Apr 26, 2011Hail$4.0 million
National Weather Service narrative
Trained spotters reported that a severe thunderstorm produced hail up to 1.5 inches in diameter on the northeast side of Belding. The swath was up to one mile wide and was part of the swath that began in extreme northeast Ottawa County based on correlation with spotter reports and radar hail products.
- Jun 22, 2015Tornado$3.2 million
National Weather Service narrative
A NWS storm survey determined that an EF-1 tornado struck Portland in Ionia county. The estimated peak wind speed was 110 mph. There was damage to homes and businesses throughout portions of Portland and more than 50 structures were impacted with roof damage and broken windows. Dozens of trees were snapped and uprooted. Three churches were heavily damaged. There were 5 minor injuries and no fatalities.
- Feb 24, 2019High Wind, Ionia$3.0 million
National Weather Service narrative
Wind gusts up to around 60 mph downed tree limbs and power lines and resulted in widespread power outages.
- May 21, 2004Flood, Ionia$1.0 million
National Weather Service narrative
The biggest and longest duration flooding event in the past ten to twenty years occurred across southwestern and south central lower Michigan from May 20th through the third of June. Flooding in mid May resulted in very high river levels and the ground was saturated on the 20th. Numerous thunderstorm complexes and areas of heavy rainfall developed repeatedly in the vicinity of a quasi stationary frontal boundary draped across southern lower Michigan. The heaviest rain fell on Saturday, May 22nd, when over two inches of rain fell over most of the area. Total rainfall over the Grand River basin from May 20th through June 3rd varied from four to as much as seven inches.The Grand…
- Aug 20, 2016Tornado$750,000
National Weather Service narrative
Tornado damage began just east of Orleans and moved northeast where it crossed M-44, bringing several large trees down, one of which fell on a house. The tornado then crossed West Long Lake Road where the concrete block wall of a garage was blown out and the wind peeled shingles off the roof of a house.||A path of tree damage about a hundred yards wide continued to the northeast and narrowed. The last damage noted was a few downed trees on East Boyer Road|about 3.5 miles southeast of Sheridan.
- Apr 4, 2023Hail$500,000
National Weather Service narrative
Hail up to tennis ball sized was reported across portions of Ionia county. It did considerable damage to area roofs and siding of homes.
- 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 Grand Rapids, 23.6 miles from the county’s population centre, with records from 1963.
- All-time high
- 104°FJul 6, 2012
- All-time low
- −22°FJan 19, 1994
- Warmest night
- 81°FJul 14, 1995
- Coldest day
- −3°FJan 15, 1972
- Wettest day
- 4.15 inMay 15, 2001
- Snowiest day
- 16.1 inJan 26, 1978
- Hottest year
- 2012mean 52.9°F
- Coldest year
- 1972mean 45.6°F
- Wettest year
- 201951.37 in
- Driest year
- 199627.55 in
- Snowiest season
- 116.0 in2013-14
Median first snow
November 9
Earliest: October 7, 2000
Median last snow
April 12
Latest: May 10, 1990
0 of 61 winters had no measurable snow.
Station Grand Rapids (USW00094860), 875 ft elevation, 23.6 miles from the population centre. Daily records from 1963 to October 26, 2026; 100.0% 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
16 since 1953. The most recent: Severe Storms, Tornadoes, and Flooding, February 8, 2024.
| Feb 8, 2024 | Flood | DR-4757-MI |
| Jul 15, 2021 | Severe Storm | DR-4607-MI |
| Mar 27, 2020 | Biological | DR-4494-MI |
| Mar 13, 2020 | Biological | EM-3455-MI |
| Jun 18, 2013 | Flood | DR-4121-MI |
| Sep 7, 2005 | Hurricane | EM-3225-MI |
| Jun 30, 2004 | Severe Storm | DR-1527-MI |
| Jan 10, 2001 | Snowstorm | EM-3160-MI |
| Jan 27, 1999 | Snowstorm | EM-3137-MI |
| Jun 24, 1998 | Severe Storm | DR-1226-MI |
| Sep 18, 1986 | Flood | DR-774-MI |
| Jan 27, 1978 | Snowstorm | EM-3057-MI |
| Feb 5, 1977 | Snowstorm | EM-3030-MI |
| Mar 19, 1976 | Severe Storm | DR-495-MI |
| Apr 26, 1975 | Flood | DR-465-MI |
| Apr 5, 1972 | Snowstorm | DR-330-MI |
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 Ionia County stands among 83 counties in Michigan and 3,143 in the United States.
| Tornadoes since 1950 | 27 | 13 / 83 |
| 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 | 37 | 36 / 83 |
| Flood insurance paid | $292,000 | 39 / 83 |
| Disaster declarations | 16 | 5 / 83 |
| Flood events since 1996 | 9 | 55 / 83 |
| Hail and wind events since 1996 | 145 | 42 / 83 |
| Winter storm events since 1996 | 68 | 61 / 83 |
| Reported damage since 1996 | $48.7 million | 24 / 83 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 81 | 81 / 83 |
| Medium or heavy smoke days a year, last 10 years | 25.1 | 53 / 83 |
| Earthquakes M4+ within 50 mi since 1900 | 1 | 13 / 83 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Barry County | 21 | 0 |
| Clinton County | 19 | 0 |
| Eaton County | 26 | 0 |
| Gratiot County | 15 | 0 |
| Kent County | 44 | 0 |
| Montcalm County | 12 | 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 USW00094860.
- 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.