Greene County, Iowa

County storm and disaster record · FIPS 19073 · population 8,769 · 570 sq mi

NOAA's Storm Events Database holds 557 records for Greene County, Iowa from 1950 through June 30, 2026, on 382 days; the most frequent are hail reports (123 records). The deadliest single record is the May 17, 1991 hail: 4 deaths. FEMA has issued 19 declarations naming the county since 1969, 17 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Straight-Line Winds, and Tornadoes” on February 23, 2022.

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
557on 382 days, 1950 to June 30, 2026
Deaths recorded
42 injuries
Damage, 2025 dollars
$207Mas filed (scale steps before 1993)
Tornadoes
30strongest EF2
FEMA declarations
19latest 2022

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 Greene County most?

The most frequent records are hail reports: 123 since 1960. 50% of its hail reports since 1960 fell in May and June. The rank column places the county among Iowa's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Greene County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Hail 123 73 1960-2024 4 0 $1.5M 62 of 99
Severe thunderstorm wind 117 69 1958-2025 0 0 $1.7M 98 of 99
Winter storms 85 82 1996-2026 0 0 $3.5M 66 of 99
Floods 63 54 1996-2019 0 0 $33M 42 of 99
Heavy rain 37 23 2008-2024 0 0 – 39 of 99
High wind and dust storms 37 37 1996-2025 0 0 $1.8M 33 of 99
Drought 30 30 2000-2024 0 0 $148M 40 of 99
Tornadoes 30 17 1954-2023 0 2 $11M 90 of 99
Extreme cold 28 28 1996-2025 0 0 $5.9M 43 of 99
Heat 4 4 2001-2019 0 0 $177K 66 of 99
Fog, smoke and funnel clouds 3 2 1996-1996 0 0 – 88 of 99

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 Greene County had?

NOAA records 30 tornadoes in Greene County from 1954 to 2023, the strongest rated EF2, with 0 deaths and 2 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 35 tornadoes whose track touched Greene County since 1950 (NOAA's county records number 30: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 0 people.

The deadliest and strongest tornadoes that touched Greene County, whole tracks
DateTornadoRatingPathKilled
1995-05-27 18:56, as SPC files itScranton to ChurdanF430 mi0

Map of the strongest tornado tracks in Iowa.

Every tornado record filed for Greene County (30)
Every tornado recorded in Greene County, newest first
DatePlaceCharacterKilledInjuredDamage
2023-05-13 Scranton, Greene County EFU 0.42 mi x 40 yd 0 0 –
2021-12-15 Paton, Greene County EF2 4.64 mi x 90 yd 0 0 $27K
2021-12-15 Grand Jct, Greene County EFU 3.83 mi x 50 yd 0 0 –
2021-12-15 Farlin, Greene County EF2 2.74 mi x 70 yd 0 0 $22K
2021-12-15 Scranton, Greene County EF2 5.83 mi x 100 yd 0 0 $545K
2021-12-15 Scranton, Greene County EF2 5.49 mi x 100 yd 0 0 $1.3M
2021-12-15 Cooper, Greene County EF2 21.73 mi x 150 yd 0 0 $871K
2021-12-15 Cooper, Greene County EF2 21.65 mi x 300 yd 0 0 $381K
2021-12-15 Cooper, Greene County EF2 5.43 mi x 100 yd 0 0 $109K
2018-06-20 Scranton, Greene County EF0 0.57 mi x 40 yd 0 0 $118
2014-08-31 Churdan, Greene County EF0 3.72 mi x 180 yd 0 0 $7K
2014-08-31 Farlin, Greene County EF0 4.49 mi x 45 yd 0 0 $7K
2014-08-31 Ralston, Greene County EF0 2.59 mi x 75 yd 0 0 $6K
2007-08-28 Cooper, Greene County EF0 13 mi x 50 yd 0 0 $85K
2007-08-28 Angus, Greene County EF0 4.16 mi x 40 yd 0 0 $64K
2005-11-12 Scranton, Greene County F1 1 mi x 45 yd 0 0 $8K
2004-09-05 Jefferson, Greene County F0 0.5 mi x 25 yd 0 0 $2K
2004-09-05 Jefferson, Greene County F1 2 mi x 40 yd 0 0 $94K
2001-05-10 Grand Jct, Greene County F0 0.2 mi x 25 yd 0 0 $2K
2001-04-11 Jefferson, Greene County F0 0.5 mi x 25 yd 0 0 –
2001-04-11 Paton, Greene County F0 1 mi x 35 yd 0 0 $17K
1998-04-06 Scranton, Greene County F0 0.2 mi x 25 yd 0 0 $362
1998-04-06 Churdan, Greene County F0 0.2 mi x 25 yd 0 0 –
1996-07-29 Cooper, Greene County F0 0.3 mi x 25 yd 0 0 $941
1984-04-26 Greene County F0 0.5 mi x 100 yd 0 0 $250 step
1971-06-06 Greene County F2 1.3 mi x 200 yd 0 1 $250K step
1969-09-26 Greene County F1 1 mi x 200 yd 0 0 $25K step
1969-07-16 Greene County F1 1.9 mi x 200 yd 0 0 $250K step
1959-05-04 Greene County F2 14.2 mi x 150 yd 0 0 $25K step
1954-04-05 Greene County F2 5.1 mi x 880 yd 0 1 $250K 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 Greene County?

The most recent record with damage, injuries or deaths is the December 15, 2021 tornado ($27,000 in damage in 2025 dollars).

This tornado moved through both Greene and Webster Counties. The tornado developed southwest of Paton in Greene County and blew apart an old shed. It continued to strengthen and snapped several large utility poles along 110th Street west of U Avenue. The tornado then exited the county into Webster County north of Paton.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 993687)
The 12 most recent records kept for Greene County
DateRecordCharacterKilledInjuredDamage
2026-02-19 Heavy SnowGreene County · forecast zone Greene 0 0 –
2025-08-09 Thunderstorm WindJefferson, Greene County 52 kt wind 0 0 –
2025-07-30 Thunderstorm WindCooper, Greene County 52 kt wind 0 0 –
2025-03-19 High WindGreene County · forecast zone Greene 37 kt wind 0 0 –
2025-03-05 High WindGreene County · forecast zone Greene 55 kt wind 0 0 –
2025-03-05 BlizzardGreene County · forecast zone Greene 0 0 –
2025-01-20 Extreme Cold/Wind ChillGreene County · forecast zone Greene 0 0 –
2025-01-02 Winter WeatherGreene County · forecast zone Greene 0 0 –
2023-05-13 TornadoScranton, Greene County EFU 0.42 mi x 40 yd 0 0 –
2022-06-11 HailHope, Greene County 2.50 in hail 0 0 –
2021-12-15 TornadoPaton, Greene County EF2 4.64 mi x 90 yd 0 0 $27K
2021-12-15 TornadoGrand Jct, Greene County EFU 3.83 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

Records with deaths or injuries in Greene County, most deaths first
DateRecordCharacterKilledInjuredDamage
1991-05-17 HailGreene County 1.75 in hail 4 0 –
1971-06-06 TornadoGreene County F2 1.3 mi x 200 yd 0 1 $250K step
1954-04-05 TornadoGreene County F2 5.1 mi x 880 yd 0 1 $250K 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.

The costliest records in Greene County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2009-12-23 Ice StormGreene County · forecast zone Greene 0 0 $1.4M
2021-12-15 TornadoScranton, Greene County EF2 5.49 mi x 100 yd 0 0 $1.3M
2021-12-15 TornadoCooper, Greene County EF2 21.73 mi x 150 yd 0 0 $871K
2021-12-15 TornadoScranton, Greene County EF2 5.83 mi x 100 yd 0 0 $545K
2007-04-24 FloodJefferson, Greene County 0 0 $356K
2008-07-21 Thunderstorm WindGrand Jct, Greene County 75 kt wind 0 0 $137K
2018-04-13 Thunderstorm WindJefferson, Greene County 65 kt wind 0 0 $118K
2004-09-05 TornadoJefferson, Greene County F1 2 mi x 40 yd 0 0 $94K

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 $250K, in the dollars of the day) holds: April 5, 1954 (tornado, Greene County); June 6, 1971 (tornado, Greene County); July 16, 1969 (tornado, Greene 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 Greene 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).

Greene County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Hail03291748359
Severe thunderstorm wind2411313393015
Winter storms––––17312512
Floods––––2425140
Heavy rain––––04312
High wind and dust storms––––121294

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

50% of its hail reports since 1960 fell in May and June. The two busiest months are in violet.

The values, month by month

Jan 46 · Feb 32 · Mar 28 · Apr 67 · May 68 · Jun 102 · Jul 50 · Aug 69 · Sep 29 · Oct 17 · Nov 14 · Dec 35 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Greene County

FEMA's register lists 19 declarations that include Greene County: 16 major disasters, 3 emergencies and 0 fire management assistance declarations. Most were for severe storm (7) and flood (7).

Declarations including Greene County, newest first
DeclaredNumberTypeTitle
2022-02-23DR-4642Severe StormSevere Storms, Straight-Line Winds, and Tornadoes
2020-08-17DR-4557Severe StormSevere Storms
2020-03-23DR-4483BiologicalCovid-19 Pandemic
2020-03-13EM-3480BiologicalCovid-19
2019-03-23DR-4421FloodSevere Storms and Flooding
2013-07-02DR-4126Severe StormSevere Storms, Tornadoes, and Flooding
2010-03-02DR-1880Severe StormSevere Winter Storm
2008-05-27DR-1763Severe StormSevere Storms, Tornadoes, and Flooding
2007-03-30EM-3275SnowstormSnow
2007-03-14DR-1688Severe StormSevere Winter Storms
2005-09-10EM-3239HurricaneHurricane Katrina Evacuation
2004-05-25DR-1518Severe StormSevere Storms, Tornadoes, and Flooding
1998-07-02DR-1230FloodSevere Storms, Tornadoes and Flooding
1993-07-09DR-996FloodSevere Storms & Flooding
1991-12-26DR-928Severe Ice StormIce Storm
1991-07-12DR-911FloodSevere Storms & Flooding
1990-05-26DR-868FloodSevere Storms & Flooding
1974-06-24DR-443FloodSevere Storms & Flooding
1969-04-25DR-259FloodFlooding

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 Greene County had?

NOAA's Storm Events Database holds 63 flood or flash flood records for Greene County from 1996 to 2019, on 54 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Greene County ranks 2636th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $6,005 on 4 claims filed in Greene County; the most in one year was 2 in 1996. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1993: 1 · 1996: 2 · 2010: 1; 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 Greene County

FEMA's National Risk Index rates Greene County Very Low overall, with an expected annual loss of $12.2 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.

National Risk Index ratings for Greene County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
DroughtRelatively High$4.5M15 modeled event-days a year
Cold WaveRelatively Moderate$2.1M7.9 a year (modeled)
TornadoRelatively Moderate$2.6Monce in about 2 years (modeled)
HailRelatively Low$502K6.1 a year (modeled)
Winter WeatherRelatively Low$65K15 a year (modeled)
Ice StormRelatively Low$61Konce in about 2 years (modeled)
Strong WindRelatively Low$481K5.6 a year (modeled)
LandslideVery Low$481once in about 14 years (modeled)

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Greene County

  1. Dallas County 1,181
  2. Webster County 1,007
  3. Boone County 806
  4. Guthrie County 707
  5. Carroll County 691
  6. Calhoun County 609
  7. Greene County 557

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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