NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Dupo, IL
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
3 tropical systems have passed within 75 miles of Dupo, Illinois since 1851, 0 of them at hurricane strength; the most recent was Ike in 2008. Since 1950, 186 tornadoes have touched down within 25 miles, 21 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 3
- Tornadoes
- 186
- EF3 or stronger
- 21
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
50 deaths in all
What the records show for Dupo
None of the 3 tropical systems was at hurricane strength as it passed Dupo; the strongest was Ike in 2008, a tropical storm with 49 mph winds when its centre passed 18 miles away. The record near Dupo begins with an unnamed storm in 1902; the most recent system was Ike in 2008. Dupo has more tropical storms and hurricanes within 75 miles than 62% of the 548 Illinois cities on this site. The highest rating among the 186 tornadoes within 25 miles is F4 or EF4, reached 5 times; the most recent, on April 22, 2011, came within 14 miles. The deadliest, an F4 on February 10, 1959, killed 21 people. Of the 186, 8 had paths within 5 miles of the city centre, and 89 have come since 2000. April has had the most tornadoes, 55. The most recent tornado was on June 4, 2025. Dupo has more tornadoes within 25 miles than 88% of the 548 Illinois cities. Hail has been reported within 10 miles 310 times since 1959, with stones up to 4.5 inches (grapefruit size). Dupo has more hail reports within 10 miles than 99% of the 548 Illinois cities.
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Tropical storms and hurricanes near Dupo
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2008 | IkeSep 14 | 18 mi | Tropical storm (49 mph) | Category 4 |
| 1941 | Unnamed 1941 stormSep 25 | 56 mi | Tropical storm (40 mph) | Category 3 |
| 1902 | Unnamed 1902 stormJun 28 | 9 mi | Tropical storm (40 mph) | Category 1 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Dupo: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Dupo
By decade
- 2020s37(2 EF3+)
- 2010s31(4 EF3+)
- 2000s21(1 EF3+)
- 1990s23
- 1980s14(5 EF3+)
- 1970s16(1 EF3+)
- 1960s19(4 EF3+)
- 1950s25(4 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Feb 10, 1959 | F4 | 8 mi | 23.9 mi | 21 / 345 |
| Feb 24, 1956 | F4 | in town | 77.6 mi | 6 / 36 |
| Jan 24, 1967 | F4 | 17 mi | 25 mi | 3 / 216 |
| Apr 22, 2011 | EF4 | 14 mi | 21.3 mi | 0 / 5 |
| Apr 3, 1981 | F4 | 14 mi | 11.9 mi | 0 / 32 |
| Dec 10, 2021 | EF3 | 18 mi | 4.22 mi | 6 / 1 |
| May 15, 1968 | F3 | 18 mi | 2 mi | 4 / 60 |
| Dec 10, 2021 | EF3 | 22 mi | 27.3 mi | 1 / 2 |
| Dec 31, 2010 | EF3 | 11 mi | 6.65 mi | 1 / 6 |
| Apr 22, 1981 | F3 | 23 mi | 7.1 mi | 1 / 0 |
| Apr 5, 1958 | F3 | 23 mi | 60.5 mi | 1 / 8 |
| May 31, 2013 | EF3 | 19 mi | 10.64 mi | 0 / 0 |
The strongest 12 of 186, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Dupo
The Storm Prediction Center has 310 hail reports within 10 miles of Dupo since 1959, made on 149 separate days. Of these, 210 were 1 inch across or larger, and 25 reached 2 inches. The largest, 4.5 inches (grapefruit size), fell on May 25, 2011. The most recent report is from April 2, 2025. April has the most reports, 77.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Dupo
The nearest NOAA station with 1991–2020 climate normals is Cahokia, IL, 3 miles north of Dupo at 400 feet. July is the warmest, with an average high of 89°F and low of 69°F; January is the coolest, at 41°F and 22°F. July is the wettest at 5.0 inches of precipitation on average and February the driest at 2.3 inches; the year adds up to 42.9 inches over 76 days with at least a tenth of an inch. Highs reach 90°F on about 39 days a year, almost all from May to September. Lows fall below freezing on about 97 nights a year. Snowfall averages 13.8 inches a year, most of it in January. That 42.9 inches is more than at 115 of the 146 Illinois stations used on this site (79%). Cahokia, 3 miles northeast, has its own station (Cahokia St Louis Airport, IL): 41.0 inches a year, 1.9 less than here, and the same July average high, 89°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 41 | 22 | 2.7 | 6 | 4.9 |
| Feb | 46 | 26 | 2.3 | 5 | 3.7 |
| Mar | 56 | 35 | 3.6 | 7 | 1.2 |
| Apr | 68 | 45 | 4.6 | 8 | 0.3 |
| May | 76 | 56 | 4.8 | 8 | 0.0 |
| Jun | 85 | 65 | 4.3 | 7 | 0.0 |
| Jul | 89 | 69 | 5.0 | 6 | 0.0 |
| Aug | 87 | 67 | 3.1 | 6 | 0.0 |
| Sep | 80 | 59 | 3.4 | 5 | 0.0 |
| Oct | 70 | 46 | 3.0 | 6 | 0.0 |
| Nov | 56 | 35 | 3.3 | 6 | 0.8 |
| Dec | 45 | 27 | 2.8 | 6 | 2.9 |
| Year | 67 | 46 | 42.9 | 76 | 13.8 |
Averages for 1991–2020 at Cahokia, IL (400 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Dupo
Since 1996, the National Weather Service has logged 306 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Dupo: 244 thunderstorm wind reports, 47 flash floods, 7 floods, 7 lightning strikes and 1 heavy rain event. They killed 7 people and injured 148, and the NWS estimated $106.1 million in property and crop damage. The strongest thunderstorm gust on record here was 90 mph, on June 10, 2003. June has had the most flash floods, 13 of 47. Of the 547 Illinois cities on this site with a flash flood on record, 473 have had fewer than Dupo.
April 28, 2012: thunderstorm wind 6 miles from the centre of Dupo — 1 killed, 100 injured.
July 19, 2020: lightning strike 5 miles from the centre of Dupo — 1 killed, 3 injured.
July 26, 2022: flash flood 4 miles from the centre of Dupo — 1 killed, $85.0 million damage.
NWS: “Up to 9 inches of rain fell in a period of 8 hours causing catastrophic flooding in portions of the city of St. Louis.”
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Flood insurance policyholders in Dupo's ZIP code 62239 have filed 172 claims with the National Flood Insurance Program since 1979, and were paid $172,000 for buildings and contents, in the dollars of each year. The most came from Midwest Flooding in 1993: 145 claims (84% of all) and $57,000. 89% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 320 Illinois cities on this site with 10 or more claims, 256 have fewer than Dupo.
| Event | Claims | Paid |
|---|---|---|
| Midwest Flooding1993 | 145 | $57,000 |
St. Clair County, which includes Dupo, has been named in 19 federal disaster or emergency declarations since 1968, 17 of them major disasters (by incident: 8 floods, 5 severe storms, 2 biological emergencies, 2 tornadoes). The latest major disaster declaration was Severe Storms, Tornadoes, Straight-Line Winds, and Floodng, on September 20, 2024. FEMA's National Risk Index gives St. Clair County a Relatively High rating for natural hazard risk overall; by hazard: Relatively High for tornadoes, hail, inland flooding, lightning and heat waves; Relatively Moderate for strong wind; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $174.6 million a year, the 6th highest of 102 Illinois counties; of the hazards above, the largest share, $71.7 million (41%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. 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).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets 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).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Dupo
- Cahokia, IL3 mi
- Centreville, IL5 mi
- Columbia, IL6 mi
- Millstadt, IL7 mi
- East Saint Louis, IL8 mi
- Maplewood, MO9 mi
- Saint Louis, MO9 mi
- Madison, IL11 mi
- Clayton, MO11 mi
- Belleville, IL11 mi
- Fairview Heights, IL11 mi
- Caseyville, IL12 mi
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