Assumption Parish, LA Environment & Hazard Risk

• DroughtRelatively High$2.42M/yr expected annual loss, about 22 events a year
• HurricaneRelatively High$10.72M/yr expected annual loss, about once every 4 years
• Coastal floodingRelatively Moderate$1.35M/yr expected annual loss, about 3.7 events a year
• TornadoRelatively Moderate$1.62M/yr expected annual loss, about once every 4 years
• Heat waveRelatively Low$554K/yr expected annual loss, about 14 events a year
• LightningRelatively Low$172K/yr expected annual loss, about 89 events a year
• Cold waveRelatively Low$675K/yr expected annual loss, about once every 1 year
• EarthquakeVery Low$52.88K/yr expected annual loss, about once every 1,263 years
• HailVery Low$71.82K/yr expected annual loss, about 1.1 events a year
• Winter weatherVery Low$12.79K/yr expected annual loss, about once every 1 year
• Strong windRelatively Low$125K/yr expected annual loss, about once every 1 year
• LandslideVery Low$40/yr expected annual loss, about once every 24 years
• Ice stormVery Low$4,825/yr expected annual loss, about once every 16 years
• WildfireVery Low$930/yr expected annual loss, about once every 71,520 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

995 of 8,423 (11.8%)

Homes in high-risk flood zones

2,661

Insured in high-risk zones

767 (29%)

Flood claims since 1978

883

Claims paid since 1978

$5.15M

• Thunderstorm Wind26
• Excessive Heat22
• Drought13
• Tornado10
• Hail9
• Flash Flood8
• Hurricane (Typhoon)7
• Tropical Storm5
• Heavy Snow3
• Cold/Wind Chill2

• Drought12/01/2000

  Assumption

  $21.7M damage

  What happened

  Louisiana State University Agricultural Center reported that prolonged drought resulted in agricultural losses, including forestry losses, totaled approximately 80 million dollars in east central and southeast Louisiana during the year 2000. Record, or near record, annual rainfall totals were recorded at several locations. At Baton Rouge, the driest year on record was established since weather records began in 1887. Only 38.10 inches of rain was recorded during the year, approximately 23 inches below normal. At New Orleans International Airport, 38.88 inches of rain was measured during the year, about 23 inches below normal. This was the second driest year since weather records began at the airport location in 1946.

• Hurricane (Typhoon)08/29/2021

  Assumption

  $10M damage

  What happened

  The parish suffered minor to moderate wind damage. Several trees and power lines were downed, with a few poles down as well. Most structural damage was in the form of shingle damage or other fascia damage, though a few properties suffered more significant damage due to falling trees or large tree limbs. At the peak, nearly the entire parish was without power.

• Hurricane (Typhoon)09/01/2008

  Assumption

  $9.75M damage

  What happened

  Hurricane Gustav affected nearly 1300 homes with 48 homes being destroyed, 87 receiving major damage, and 175 minor damage. Damage estimates were from preliminary American Red Cross surveys. Many businesses also received damage and numerous trees and utility poles were knocked down. The majority of the damage was caused by the high winds associated with Gustav.

• Hurricane (Typhoon)08/28/2005

  Assumption

  $8.5M damage

  What happened

  Hurricane Katrina was one of the strongest and most destructive hurricanes on record to impact the coast of the United States. It will likely be recorded as one the worst natural disaster in the history of the United States to date resulting in catastrophic damage and numerous casualties in southeast Louisiana and along the Mississippi coast. Damage and casualties resulting from Hurricane Katrina extended as far east as Alabama and the panhandle of Florida. Katrina developed from a tropical depression southeast of the Bahamas on August 24th. After moving through the Bahamas as a tropical storm, Katrina strengthened to a category 1 hurricane prior to landfall in south Florida around the Miami area on the 25th of August. Katrina crossed south Florida and entered the Gulf of Mexico and began to strengthen. Hurricane Katrina strengthened to a category 5 storm on August 28th about 250 miles south southeast of the mouth of the Mississippi River with winds reaching their peak intensity of 175 mph and a central pressure of 902 mb. Post event analysis by the National Hurricane Center indicates that Katrina weakened slightly before making landfall as a strong category 3 storm in...

• Tropical Storm09/23/2005

  Assumption

  $5.76M damage

  What happened

  A tropical depression moving west through the Turks and Caicos Islands developed into Tropical Storm Rita on the afternoon of September 18th. Rita moved west through the central Bahamas on the 19th and strengthened into a category 2 hurricane on the 20th while moving across the Florida Straits. After entering the Gulf of Mexico on the 21st, Rita rapidly intensified as it moved west northwest. Rita strengthened to a category 5 storm on the afternoon of the 21st and reached its peak intensity the next day 570 miles east southeast of Galveston, Texas with maximum sustained winds of 175 mph and a minimum central pressure of 897 mb. Rita turned northwest and weakened to a category 3 hurricane on the 23rd and made landfall around 230 AM CDT on September 24th just east of the Texas and Louisiana border between Sabine Pass and Johnson's Bayou as a category 3 storm with maximum sustained winds of 120 mph.A tropical depression moving west through the Turks and Caicos Islands developed into Tropical Storm Rita on the afternoon of September 18th. Rita moved west through the central Bahamas on the 19th and strengthened into a category 2 hurricane on the 20th while moving across the...

• Hurricane (Typhoon)10/03/2002

  Assumption

  $5.54M damage

  What happened

  Hurricane Lili, a major hurricane over the Gulf of Mexico, during the daylight hours of October 2, 2002 moved steadily northwest around 15 mph toward the Louisiana coast during the evening hour. The hurricane weakened rapidly to a Saffir Simpson Scale Category 1 Hurricane by the time it made landfall during the morning of October 3rd along the south central Louisiana coast. The hurricane continued to moved north northwest across south central Louisiana before turning northeast across the northern portion of the state. Due to the rapid weakening, no sustained hurricane force winds were measured in southeast Louisiana. However, storm surge was significant across the southeast Louisiana coastal areas and tidal lakes. Storm surge tides were 3 to 5 feet above normal across much of coastal southeast Louisiana except 4 to 7 feet above normal across south Lafourche and Terrebonne Parishes, closer to the location where the hurricane made landfall. Storm surge caused the most damage in Terrebonne Parish where many communities situated along bayous in the southern portion of the parish received considerable flooding. Storm surge also overtopped or breached several locally built drainage...

• Drought03/01/2026

  Assumption

• Drought02/17/2026

  Assumption

• Extreme Cold/Wind Chill01/27/2026

  Assumption

• Excessive Heat07/23/2025

  Assumption

• Extreme Cold/Wind Chill01/22/2025

  Assumption

• Heavy Snow01/21/2025

  Assumption

• Flash Flood12/09/2024

  Klotzville, Assumption Parish

• Flash Flood09/12/2024

  Labadieville, Assumption Parish

• Hurricane Isaac (2012)08/20/2012 · Landfall: LA · 965 mbTropical storm69 mph nearby
• Tropical Storm Allison (2001)06/05/2001 · Landfall: TX, LA · 1,000 mbTropical storm40 mph nearby
• Hurricane Betsy (1965)08/27/1965 · Landfall: FL, LA · 942 mbCategory 2109 mph nearby
• Unnamed storm (1931)07/11/1931 · Landfall: LA · 1,000 mbTropical storm52 mph nearby
• Unnamed storm (1926)08/20/1926 · Landfall: LA · 955 mbCategory 2109 mph nearby
• Unnamed storm (1923)10/12/1923 · Landfall: LA · 983 mbCategory 181 mph nearby
• Unnamed storm (1905)10/05/1905 · Landfall: LATropical storm46 mph nearby
• Unnamed storm (1888)08/14/1888 · Landfall: FL, LACategory 298 mph nearby
• Unnamed storm (1879)08/29/1879 · Landfall: LACategory 3127 mph nearby

• Assumption Parish Ww District 1Serves 21,366 · Surface water · Local governmentNo health violations