NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Dyersville, IA
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
1 tropical system has passed within 75 miles of Dyersville, Iowa since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 107 tornadoes have touched down within 25 miles, 11 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 107
- EF3 or stronger
- 11
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
1 deaths in all
What the records show for Dyersville
None of the 1 tropical systems was at hurricane strength as it passed Dyersville; the strongest was an unnamed storm in 1900, a tropical storm with 51 mph winds when its centre passed 40 miles away. Dyersville is tied for the most tropical storms and hurricanes within 75 miles among the 241 Iowa cities on this site. The highest rating among the 107 tornadoes within 25 miles is F4, reached 3 times; the most recent, on March 13, 1990, came within 6 miles. The deadliest, an F3 on April 23, 1961, killed 1 person. Of the 107, 5 had paths within 5 miles of the city centre, and 47 have come since 2000. June has had the most tornadoes, 25. The most recent tornado was on July 11, 2025. Of the 241 Iowa cities, 77% have more tornadoes within 25 miles than Dyersville. Hail has been reported within 10 miles 49 times since 1961, with stones up to 3 inches (tea cup size). Of the 241 Iowa cities, 91% have more hail reports within 10 miles than Dyersville.
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Tropical storms and hurricanes near Dyersville
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 1900 | Unnamed 1900 stormSep 11 | 40 mi | Tropical storm (51 mph) | Category 4 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Dyersville: 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 Dyersville
By decade
- 2020s19
- 2010s15
- 2000s13(1 EF3+)
- 1990s21(5 EF3+)
- 1980s11
- 1970s8(3 EF3+)
- 1960s15(1 EF3+)
- 1950s5(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Mar 13, 1990 | F4 | 6 mi | 19 mi | 0 / 0 |
| Aug 12, 1974 | F4 | 20 mi | 5 mi | 0 / 12 |
| Apr 30, 1954 | F4 | 20 mi | 80.4 mi | 0 / 0 |
| Apr 23, 1961 | F3 | 17 mi | 87.7 mi | 1 / 12 |
| May 25, 2008 | EF3 | 14 mi | 31.99 mi | 0 / 3 |
| Jul 27, 1995 | F3 | 12 mi | 20 mi | 0 / 0 |
| Jun 19, 1993 | F3 | 24 mi | 14 mi | 0 / 0 |
| Jun 19, 1993 | F3 | 17 mi | 9 mi | 0 / 0 |
| Jul 13, 1992 | F3 | 22 mi | 5 mi | 0 / 0 |
| Jul 12, 1971 | F3 | 22 mi | 0.1 mi | 0 / 2 |
| Sep 9, 1970 | F3 | 23 mi | 4.7 mi | 0 / 0 |
| Jun 28, 2017 | EF2 | 13 mi | 2.5 mi | 0 / 0 |
The strongest 12 of 107, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Dyersville
The Storm Prediction Center has 49 hail reports within 10 miles of Dyersville since 1961, made on 32 separate days. Of these, 33 were 1 inch across or larger, and 2 reached 2 inches. The largest, 3 inches (tea cup size), fell on July 15, 1961. The most recent report is from August 24, 2021. April has the most reports, 16.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Dyersville
The nearest NOAA station with 1991–2020 climate normals is Cascade, IA, 15 miles southeast of Dyersville at 814 feet. July is the warmest, with an average high of 83°F and low of 63°F; January is the coolest, at 27°F and 11°F. June is the wettest at 6.0 inches of precipitation on average and January the driest at 1.3 inches; the year adds up to 39.6 inches over 68 days with at least a tenth of an inch. Highs reach 90°F on about 11 days a year, almost all from June to September. Lows fall below freezing on about 153 nights a year. Snowfall averages 31.1 inches a year, most of it in February. That 39.6 inches is more than at 117 of the 124 Iowa stations used on this site (94%). Peosta, 16 miles east, has its own station (Dubuque Regional Airport, IA): 38.3 inches a year, 1.3 less than here, and a July average high of 82°F against 83°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 27 | 11 | 1.3 | 4 | 8.3 |
| Feb | 32 | 15 | 1.5 | 4 | 8.8 |
| Mar | 45 | 26 | 2.2 | 5 | 4.2 |
| Apr | 59 | 37 | 4.0 | 7 | 0.9 |
| May | 70 | 49 | 4.2 | 8 | 0.0 |
| Jun | 80 | 60 | 6.0 | 8 | 0.0 |
| Jul | 83 | 63 | 4.5 | 6 | 0.0 |
| Aug | 81 | 60 | 4.7 | 6 | 0.0 |
| Sep | 75 | 51 | 3.8 | 6 | 0.0 |
| Oct | 62 | 39 | 3.3 | 5 | 0.2 |
| Nov | 46 | 28 | 2.3 | 4 | 1.8 |
| Dec | 33 | 18 | 1.8 | 4 | 6.9 |
| Year | 58 | 38 | 39.6 | 68 | 31.1 |
Averages for 1991–2020 at Cascade, IA (814 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 Dyersville
Since 1996, the National Weather Service has logged 73 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Dyersville: 58 thunderstorm wind reports, 13 flash floods, 1 heavy rain event and 1 lightning strike. None is recorded as killing or injuring anyone; the NWS estimated $8.3 million in property and crop damage. The strongest thunderstorm gust on record here was 97 mph, on July 15, 2024. June has had the most flash floods, 4 of 13. Of the 240 Iowa cities on this site with a flash flood on record, 114 have had fewer than Dyersville.
July 27, 2011: flash flood 9 miles from the centre of Dyersville — $7.0 million damage.
NWS: “Torrential downpours of rain fell across much of Dubuque County during the evening of July 27 and early morning hours of July 28 resulting in flash flooding of much of the county, especially in Dubuque, IA.”
July 22, 2010: flash flood 8 miles from the centre of Dyersville — $500,000 damage.
NWS: “Heavy rains of 4 to 8 inches which fell in about 12 hours resulted in flash flooding of much of Dubuque County during the morning of July 23. At 1245 am CDT, about 15 inches of water was flowing in some streets in Dubuque as torrential rains continued.”
June 19, 2009: thunderstorm wind 8 miles from the centre of Dyersville — $250,000 damage.
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 Dyersville's ZIP code 52040 have filed 171 claims with the National Flood Insurance Program since 1979, and were paid $764,000 for buildings and contents, in the dollars of each year. The year with the most claims was 1999, with 53. 6% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 91 Iowa cities on this site with 10 or more claims, 72 have fewer than Dyersville.
Dubuque County, which includes Dyersville, has been named in 21 federal disaster or emergency declarations since 1965, 19 of them major disasters (by incident: 10 floods, 8 severe storms, 2 biological emergencies, 1 hurricane). The latest major disaster declaration was Severe Storms, Flooding, Straight-Line Winds, and Tornadoes, on June 24, 2024. FEMA's National Risk Index gives Dubuque County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for tornadoes, hail and strong wind; Relatively Low for inland flooding, lightning and heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $41.7 million a year, the 8th highest of 99 Iowa counties; of the hazards above, the largest share, $19.4 million (47%), 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 Dyersville
- Farley, IA7 mi
- Epworth, IA11 mi
- Cascade, IA15 mi
- Peosta, IA16 mi
- Manchester, IA17 mi
- Monticello, IA19 mi
- Guttenberg, IA19 mi
- Dubuque, IA22 mi
- Strawberry Point, IA24 mi
- Potosi, WI26 mi
- East Dubuque, IL27 mi
- Anamosa, IA28 mi
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