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Tornado History

Jasper Tornado History

This county-level tornado history page focuses on Jasper, Iowa. The records below identify 42 tornadoes from 1965 through 2024, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $56.6M, with 2 deaths and 6 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes42
Total Deaths2
Total Injuries6
Property Damage$56.6M
Avg Length4.9 mi
Avg Width134 yd

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Key Tornado Facts for Jasper, Iowa

Top local patterns from the historical tornado records in this group.

Average 0.7 tornadoes per year (1.5/yr in last decade)
June is the peak tornado month with 8 recorded events
Deadliest tornado: F3 in Jasper, Iowa with 2 deaths
2008 was the most active year with 5 tornadoes
The 2000s had the most tornado activity (10 events)
Longest tornado: 29.5 miles in Jasper, Iowa
Widest tornado: 1,250.0 yards in Jasper, Iowa
Most tornadoes in one day: 3 on May 22, 2004

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Jasper, Iowa, June is the most active month with 8 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

5420

Summary: 2008 was the most active year with 5 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F2
EF2
F3
F4
EFU

Summary: EF0 tornadoes are the most common in this group, with 13 recorded events.

Property Damage Trends

Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.

$50.5M$5.0M$505K$0

Summary: The highest reported property damage year in this group is 2022 with at least $50.5M in NOAA-listed property damage.

Historical Track Sketch

F4 September 28, 19861986F3 September 16, 19781978F3 October 14, 19661966EF2 March 5, 20222022F2 April 8, 19991999EF2 September 30, 20072007EF2 March 5, 20222022F2 June 4, 19731973F2 August 26, 19651965F2 April 3, 19681968F1 May 8, 19881988EF1 June 5, 20082008EF1 April 26, 20242024EF1 June 5, 20082008F1 August 26, 1979F1 May 8, 1986F1 April 11, 2001EF0 December 15, 2021EF0 June 5, 2008EF0 May 7, 2024EF0 July 19, 2018F0 May 22, 2004F0 March 30, 1968F0 June 13, 1990F0 June 16, 1990EF0 October 13, 2023F0 August 19, 1979F0 July 9, 1998F0 May 22, 2004F0 May 22, 2004EF0 July 27, 2008EF0 July 27, 2008EF0 July 6, 2014EF0 July 6, 2014EF0 May 3, 2018EF0 May 3, 2018EF0 July 19, 2018EF0 July 19, 2018EFU September 22, 2019EFU June 25, 2024EFU June 25, 2024EFU April 26, 2024© OpenStreetMap contributors

Notable Tornado Records

The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
September 28, 1986F4Jasper, Iowa14 mi250 yd00$2.5M
September 16, 1978F3Jasper, Iowa16.4 mi200 yd22$250K
October 14, 1966F3Jasper, Iowa29.5 mi200 yd00$25K
March 5, 2022EF2Jasper, Iowa19.29 mi400 yd00$50.0M
April 8, 1999F2Jasper, Iowa11 mi175 yd01$1.0M
September 30, 2007EF2Jasper, Iowa5.79 mi1250 yd00$1.0M
March 5, 2022EF2Jasper, Iowa12.25 mi500 yd00$500K
June 4, 1973F2Jasper, Iowa1.3 mi250 yd00$250K
August 26, 1965F2Jasper, Iowa3 mi100 yd00$25K
April 3, 1968F2Jasper, Iowa5.2 mi150 yd00$25K
May 8, 1988F1Jasper, Iowa7 mi30 yd00$250K
June 5, 2008EF1Jasper, Iowa14.25 mi150 yd02$250K

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Source And Limits

Data source: NOAA/NCEI. TornadoTrace summarizes historical records for screening and research. Coordinates, damage estimates, narratives, and event details can be approximate, incomplete, revised, or missing. Do not use this page as legal, insurance, engineering, real estate, emergency management, or safety advice.