Calhoun County, Illinois
County storm and disaster record · FIPS 17013 · population 4,437 · 254 sq mi
NOAA's Storm Events Database holds 270 records for Calhoun County, Illinois from 1950 through June 30, 2026, on 235 days; the most frequent are severe thunderstorm wind events (76 records). The most damaging was the February 11, 1999 tornado ($531,000 in 2025 dollars). FEMA has issued 25 declarations naming the county since 1969, 23 of them for natural hazards; the latest for a natural hazard was “Severe Storms and Flooding” on August 15, 2023.
The record, 1950 to 2026
Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).
- recorded, no damage figure
- under $100,000
- $100,000 or more
- $1 million or more
- $10 million or more, or a death
- $100 million or more, or 10 deaths
- a year's colour: its recorded damage or deaths
- a year with a death
- 1955: wind and hail recorded from 1955
- 1996: all 48 event types from 1996
- Storm records
- 270on 235 days, 1950 to June 30, 2026
- Deaths recorded
- 05 injuries
- Damage, 2025 dollars
- $1.1Mas filed (scale steps before 1993)
- Tornadoes
- 10strongest F2
- FEMA declarations
- 25latest 2023
Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.
What hazards hit Calhoun County most?
The most frequent records are severe thunderstorm wind events: 76 since 1974. The rank column places the county among Illinois's counties by days with a record per 1,000 square miles of land over each hazard's complete period.
| Hazard | Records | Days | First, last | Killed | Injured | Damage | Rank in state |
|---|---|---|---|---|---|---|---|
| Severe thunderstorm wind | 76 | 61 | 1974-2023 | 0 | 1 | $47K | 51 of 102 |
| Winter storms | 50 | 49 | 1996-2025 | 0 | 0 | – | 35 of 102 |
| Heat | 48 | 48 | 1999-2025 | 0 | 0 | – | 15 of 102 |
| Hail | 32 | 27 | 1983-2023 | 0 | 0 | – | 69 of 102 |
| Floods | 28 | 25 | 1996-2025 | 0 | 0 | $112K | 33 of 102 |
| Drought | 10 | 10 | 2005-2018 | 0 | 0 | – | 31 of 102 |
| Tornadoes | 10 | 9 | 1958-2025 | 0 | 4 | $910K | 81 of 102 |
| High wind and dust storms | 8 | 8 | 1997-2025 | 0 | 0 | $4K | 43 of 102 |
| Extreme cold | 5 | 5 | 2000-2024 | 0 | 0 | – | 63 of 102 |
| Heavy rain | 2 | 2 | 2003-2005 | 0 | 0 | – | 40 of 102 |
| Fog, smoke and funnel clouds | 1 | 1 | 2003-2003 | 0 | 0 | – | 50 of 102 |
Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.
How many tornadoes has Calhoun County had?
NOAA records 10 tornadoes in Calhoun County from 1958 to 2025, the strongest rated F2, with 0 deaths and 4 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.
Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 10 tornadoes whose track touched Calhoun County since 1950 (NOAA's county records number 10, the same count); along their whole tracks they killed 0 people.
| Date | Tornado | Rating | Path | Killed |
|---|---|---|---|---|
| 2006-03-13 01:20, as SPC files it | Whiteside to AnnadaCrossed IL, MO | F3 | 44.5 mi | 0 |
Map of the strongest tornado tracks in Illinois.
Every tornado record filed for Calhoun County (10)
| Date | Place | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2025-06-18 | Belleview, Calhoun County | EFU 0.6 mi x 100 yd | 0 | 0 | – |
| 2010-12-31 | Mozier, Calhoun County | EF0 3.64 mi x 50 yd | 0 | 0 | – |
| 2006-03-13 | Mozier, Calhoun County | F0 6 mi x 50 yd | 0 | 0 | – |
| 2006-03-12 | Kampsville, Calhoun County | F0 6 mi x 50 yd | 0 | 0 | – |
| 2002-05-07 | Centerville, Calhoun County | F0 0.1 mi x 25 yd | 0 | 0 | – |
| 1999-02-11 | Mozier, Calhoun County | F1 3 mi x 50 yd | 0 | 0 | $177K |
| 1999-02-11 | Mozier, Calhoun County | F2 9 mi x 100 yd | 0 | 0 | $531K |
| 1998-06-14 | Belleview, Calhoun County | F1 1.2 mi x 75 yd | 0 | 0 | – |
| 1969-10-10 | Calhoun County | F2 0.3 mi x 100 yd | 0 | 4 | $25K step |
| 1958-05-31 | Calhoun County | F0 8.8 mi x 33 yd | 0 | 0 | $30 step |
A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.
Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.
When was the last damaging storm in Calhoun County?
The most recent record with damage, injuries or deaths is the July 27, 2025 flash flood ($50,000 in damage in 2025 dollars).
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2025-11-29 | Winter StormCalhoun County · forecast zone Calhoun | 0 | 0 | – | |
| 2025-08-15 | Excessive HeatCalhoun County · forecast zone Calhoun | 0 | 0 | – | |
| 2025-07-27 | Flash FloodBelleview, Calhoun County | 0 | 0 | $50K | |
| 2025-06-18 | TornadoBelleview, Calhoun County | EFU 0.6 mi x 100 yd | 0 | 0 | – |
| 2025-03-14 | High WindCalhoun County · forecast zone Calhoun | 50 kt wind | 0 | 0 | – |
| 2025-01-05 | Winter StormCalhoun County · forecast zone Calhoun | 0 | 0 | – | |
| 2023-07-01 | HailKampsville, Calhoun County | 2.00 in hail | 0 | 0 | – |
| 2011-04-19 | HailGolden Eagle, Calhoun County | 2.50 in hail | 0 | 0 | – |
| 2010-12-31 | TornadoMozier, Calhoun County | EF0 3.64 mi x 50 yd | 0 | 0 | – |
| 2006-06-22 | HailHardin, Calhoun County | 2.75 in hail | 0 | 0 | – |
| 2006-03-13 | TornadoMozier, Calhoun County | F0 6 mi x 50 yd | 0 | 0 | – |
| 2006-03-12 | TornadoKampsville, Calhoun County | F0 6 mi x 50 yd | 0 | 0 | – |
Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.
The deadliest and costliest records
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 1969-10-10 | TornadoCalhoun County | F2 0.3 mi x 100 yd | 0 | 4 | $25K step |
| 1988-11-15 | Thunderstorm WindCalhoun County | 0 | 1 | – |
A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 1999-02-11 | TornadoMozier, Calhoun County | F2 9 mi x 100 yd | 0 | 0 | $531K |
| 1999-02-11 | TornadoMozier, Calhoun County | F1 3 mi x 50 yd | 0 | 0 | $177K |
| 2025-07-27 | Flash FloodBelleview, Calhoun County | 0 | 0 | $50K |
Before 1993 NOAA filed damage by category, not amount, so the list above starts in 1993. The highest category filed here before then (entered as $25K, in the dollars of the day) holds: October 10, 1969 (tornado, Calhoun County).
Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.
Is it getting more frequent?
Records per decade for Calhoun County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).
| Hazard | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020-26 |
|---|---|---|---|---|---|---|---|---|
| Severe thunderstorm wind | 0 | 0 | 2 | 9 | 21 | 29 | 11 | 4 |
| Winter storms | – | – | – | – | 9 | 22 | 13 | 6 |
| Heat | – | – | – | – | 1 | 19 | 25 | 3 |
| Hail | 0 | 0 | 0 | 2 | 7 | 12 | 8 | 3 |
| Floods | – | – | – | – | 2 | 15 | 9 | 2 |
| Drought | – | – | – | – | 0 | 3 | 7 | 0 |
Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).
What time of year?
Records by month in Calhoun County. The two busiest months are in violet.
The values, month by month
Jan 25 · Feb 18 · Mar 14 · Apr 24 · May 39 · Jun 34 · Jul 41 · Aug 28 · Sep 10 · Oct 8 · Nov 12 · Dec 17 (records).
Source: NOAA NCEI Storm Events Database, records by the month they began.
Federal disaster declarations for Calhoun County
FEMA's register lists 25 declarations that include Calhoun County: 22 major disasters, 3 emergencies and 0 fire management assistance declarations. Most were for flood (11) and severe storm (7).
| Declared | Number | Type | Title |
|---|---|---|---|
| 2023-08-15 | DR-4728 | Severe Storm | Severe Storms and Flooding |
| 2020-03-26 | DR-4489 | Biological | Covid-19 Pandemic |
| 2020-03-13 | EM-3435 | Biological | Covid-19 |
| 2019-09-19 | DR-4461 | Flood | Severe Storms and Flooding |
| 2013-05-10 | DR-4116 | Flood | Severe Storms, Straight-Line Winds, and Flooding |
| 2011-03-17 | DR-1960 | Snowstorm | Severe Winter Storm and Snowstorm |
| 2008-06-24 | DR-1771 | Severe Storm | Severe Storms and Flooding |
| 2007-02-09 | DR-1681 | Severe Ice Storm | Severe Winter Storm |
| 2005-09-07 | EM-3230 | Hurricane | Hurricane Katrina Evacuation |
| 2002-05-21 | DR-1416 | Tornado | Severe Storms, Tornadoes and Flooding |
| 2001-05-09 | DR-1368 | Flood | Flooding |
| 1999-01-08 | EM-3134 | Snowstorm | Il-Winter Storm 1/1/99 |
| 1995-05-30 | DR-1053 | Severe Storm | Severe Storms and Flooding |
| 1994-04-26 | DR-1025 | Severe Storm | Severe Storms and Flooding |
| 1993-07-09 | DR-997 | Flood | Severe Storms & Flooding |
| 1990-06-22 | DR-871 | Severe Storm | Severe Storms, Tornadoes & Flooding |
| 1986-10-07 | DR-776 | Flood | Severe Storms & Flooding |
| 1985-03-29 | DR-735 | Flood | Severe Storms & Flooding |
| 1983-06-06 | DR-684 | Severe Storm | Severe Storms, Tornadoes & Flooding |
| 1982-12-13 | DR-674 | Severe Storm | Severe Storms, Tornadoes & Flooding |
| 1979-04-30 | DR-583 | Flood | Severe Storms & Flooding |
| 1974-06-10 | DR-438 | Flood | Severe Storms & Flooding |
| 1973-04-26 | DR-373 | Flood | Severe Storms & Flooding |
| 1969-08-30 | DR-276 | Flood | Heavy Rains & Flooding |
| 1969-06-06 | DR-262 | Flood | Flooding |
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.
How many floods has Calhoun County had?
NOAA's Storm Events Database holds 28 flood or flash flood records for Calhoun County from 1996 to 2025, on 25 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Calhoun County ranks 218th of 2,942 U.S. counties.
The National Flood Insurance Program has paid $16.8 million on 1,690 claims filed in Calhoun County; the most in one year was 434 in 1993. Claims count insured losses only: uninsured flood damage is not in this file.
The values, year by year
1978: 8 · 1979: 209 · 1980: 2 · 1981: 14 · 1982: 158 · 1983: 133 · 1984: 5 · 1985: 83 · 1986: 133 · 1990: 32 · 1991: 2 · 1993: 434 · 1994: 3 · 1995: 61 · 1996: 20 · 1998: 8 · 2000: 1 · 2001: 24 · 2002: 30 · 2004: 1 · 2008: 75 · 2009: 8 · 2010: 12 · 2011: 16 · 2013: 76 · 2014: 5 · 2015: 35 · 2016: 1 · 2017: 8 · 2018: 2 · 2019: 87 · 2024: 1 · 2025: 3; the other years: 0.
Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.
FEMA's modeled risk for Calhoun County
FEMA's National Risk Index rates Calhoun County Very Low overall, with an expected annual loss of $4.1 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.
| Hazard | Risk rating | Expected annual loss | Modeled frequency |
|---|---|---|---|
| Landslide | Relatively Low | $44K | once in about 2 years (modeled) |
| Heat Wave | Relatively Low | $686K | 11 modeled event-days a year |
| Drought | Relatively Low | $69K | 3.6 modeled event-days a year |
| Earthquake | Very Low | $125K | once in about 256 years (modeled) |
| Cold Wave | Very Low | $292K | 2.3 a year (modeled) |
| Tornado | Very Low | $261K | once in about 4 years (modeled) |
| Riverine Flooding | Very Low | $2.3M | about once a year (modeled) |
| Strong Wind | Very Low | $167K | 5.9 a year (modeled) |
Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.
Counties that share a border with Calhoun County
Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.
Next
- Tornadoes in IllinoisEvery Illinois tornado since 1950 and the counties with the most per square mile
- Severe thunderstorm wind in IllinoisThe state's severe thunderstorm wind events, by county, year and month
- The Illinois recordEvery hazard in the state, its deadliest events and its federal declarations
- FEMA's risk rating for each hazard in Calhoun CountyThe hazard risk calculator: 18 hazards beside the county's record
- Download Calhoun County's FEMA declarations (CSV)25 rows: every declaration that named the county, for your own analysis