On average, 12 tropical storms - 6 of which become hurricanes - form over the Atlantic Ocean, Caribbean Sea, or the Gulf of Mexico during the hurricane season, according to the National Weather Service.
In a typical 2-year period, the U.S. coastline is struck by an average of 3 hurricanes, 1 of which is classified as a major hurricane with winds of 111 mph or greater. The storms can have winds ranging from 74 to over 157 mph that bring destruction from storm surge and torrential rains that have the ability to cause massive flooding.
For 2019, forecasters are calling for 9 to 15 named storms, of which 4 to 8 could strengthen into hurricanes.
Hurricanes have also claimed thousands of lives and caused tens of billions worth of damage. Here are the top costliest and deadliest hurricanes to strike the U.S. mainland:
6. Hurricane Andrew in 1992, estimated $27 billion in damages
Hurricane Andrew made landfall in Florida as a Category 5 storm on Aug. 24, 1992. (National Weather Service)
Hurricane Andrew was the strongest and move devastating hurricane on record to hit southern Florida when it made landfall on August 24, 1992. The Category 5 storm had maximum sustained winds of 165 mph and was one of only four Category 5 hurricanes to make landfall in the U.S. since 1900 (the others being the 1935 Florida Keys Labor Day storm, Hurricane Camille in 1969, and Hurricane Michael in 2018.)
The storm caused an estimated $27 billion in damages and was the most expensive natural disaster until Hurricane Katina 13 years later, according to the NWS.
Veteran newsman and Fox News contributor weighs in as Hurricane Irma churns toward Florida
"Almost all of the damage cost was from southern Dade County, where the number of homes destroyed was approximately 49,000, with an additional estimated 108,000 damaged," the NWS says in a factsheet. "In Homestead, the hardest hit community, more than 99% (1167 of 1176) of all mobile homes were completely destroyed."
After hitting South Florida, Andrew moved across the Gulf of Mexico and made landfall in Louisiana as a Category 4 storm on Aug. 26, 1992. The storm directly caused 26 deaths in the U.S.
5. Hurricane Ike in 2008, estimated $30 billion in damages
Hurricane Ike made landfall along the north end of Galveston Island in Texas on Sept. 13, 2008, as a Category 2 storm with 110 mph winds. The storm went on to kill 21 people in Texas, Louisiana, and Arkansas.
Storm damage along the Texas coast can be seen in this 2008 photo from the National Oceanic and Atmospheric Administration. (NOAA)
"Ike's storm surge devastated the Bolivar Peninsula of Texas, and surge, winds, and flooding from heavy rains caused widespread damage in other portions of southeastern Texas, western Louisiana, and Arkansas," according to the NHC. Property damage from Ike was estimated at about $30 billion, making the storm at the time the costliest to affect the U.S. after Hurricane Katrina in 2005.
4. Hurricane Irma in 2017, estimated $50 billion in damages
The entire sunshine state was under threat when Hurricane Irma made landfall as a Category 4 storm with 130 mph winds on Sept. 10, 2017, along the Florida Keys before moving northward along Florida's Gulf Coast over the next day.
Matt Finn reports from Homestead, Florida
The storm had a wind field that expanded dramatically as the storm approached the state, with tropical storm force winds extending outward up to 400 miles from the center, while hurricane-force winds extended up to 80 miles.
"Hurricane force wind gusts (i.e. 74 MPH or more) were reported along much of the east coast of Florida, from Jacksonville to Miami," the NWS' Tallahassee office said. "In addition to the long periods of heavy rain and strong winds, storm surge flooding also occurred well away from the storm center, including the Jacksonville area, where strong and persistent onshore winds had been occurring for days before Irma’s center made its closest approach."
Irma caused about $50 billion worth of damage, according to the NHC.
4. Superstorm Sandy in 2012, estimated $65 billion in damages
In this Nov. 14, 2012 photo, Louise McCarthy places an American flag on a street sign for Irving Walk in the Breezy Point neighborhood of Queens, N.Y. The sign survived a fire that swept through the seaside community during Superstorm Sandy two weeks earlier. (AP Photo/Mark Lennihan)
Sandy was a late-season hurricane in October 2012 that intensified into a hurricane as it tracked north across Jamaica, eastern Cuba, and the Bahamas.
The storm moved northwest of the U.S. until turning west toward the Atlantic Coast on Oct. 28, 2012, before transitioning to a post-tropical cyclone just prior to making landfall near Atlantic City, New Jersey on the evening of Oct. 29, 2012.
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"In the United States, 72 direct deaths were noted, making Sandy the deadliest U.S. cyclone outside of the southern states since Agnes (1972)," the NHC said in its report.
The storm is estimated to have caused $65 billion in damages, with at least 650,000 homes either damaged or destroyed. A "vast majority" of the damage was caused by storm surge and/or waves, according to the NHC.
Sandy's storm surge caused catastrophic damage in New Jersey and New York, and high winds knocked out power for millions.
3. Hurricane Maria in 2017, estimated $90 billion in damages
This photo, from NOAA, shows Hurricane Maria at its strongest on Sept. 20, 2017. (National Oceanic and Atmospheric Administration)
The third-costliest storm to impact the U.S. struck Puerto Rico in 2017.
Hurricane Maria was the strongest hurricane to make landfall in Puerto Rico since 1928 and was the deadliest of 2017’s three major storms
"Hurricane Maria knocked down 80 percent of Puerto Rico’s utility poles and all transmission lines, resulting in the loss of power to essentially all of the island’s 3.4 million residents," according to NOAA's factsheet. "Practically all cell phone service was lost and municipal water supplies were knocked out."
For many parts of Puerto Rico, the recovery from category 4 Hurricane Maria remains far from complete; Phil Keating reports from Yabucoa.
The storm ranks third highest for causing an estimated $90 billion in damage, according to the NHC's factsheet. The storm's official death toll was raised from 64 to 2,975 last August in response to a new study that found the initial numbers reported were undercounted.
There's no national standard for how to calculate disaster-related deaths. While the National Hurricane Center (NHC) reports only direct deaths, such as those caused by flying debris or drowning, some local governments may include indirect deaths from things as heart attacks and house fires.
Researchers with the Milken Institute School of Public Health at George Washington University said they counted deaths over the span of six months — a much longer period than usual — because so many people were without power during that time.
2. Hurricane Harvey in 2017, estimated $125 billion in damages
Hurricane Harvey became the first major hurricane to make landfall in the United States since 2005 when it roared ashore as a Category 4 storm in Rockport, Texas on August 26, 2017.
The eye of Hurricane Harvey can be seen as it makes landfall near Rockport, Texas in August 2017. (NHC)
"In a four-day period, many areas received more than 40 inches of rain as the cyclone meandered over eastern Texas and adjacent waters, causing catastrophic flooding, "according to the NWS.
With a peak accumulation of over 60 inches of rain, Hurricane Harvey produced the most rain on record for a tropical storm or any other weather event in the U.S. The storm caused an estimated $125 billion in damages, according to the NOAA.
"At least 68 fatalities in Texas alone were directly attributable to this event, the highest death toll due to a tropical system in that state since 1919," according to an NWS assessment.
1. Hurricane Katina in 2005, estimated $125 billion in damages
The all-time costliest hurricane to strike the United States took place in 2005 when Hurricane Katrina targeted Florida as a Category 1 storm before strengthening into a monster Category 5 in the Gulf of Mexico. The storm weakened down to a Category 3 as it made landfall along the northern Gulf Coast on Aug. 29, 2005.
"Even so, the damage and loss of life inflicted by this massive hurricane in Louisiana and Mississippi were staggering, with significant effects extending into the Florida panhandle, Georgia, and Alabama," the NHC said in its report. "Considering the scope of its impacts, Katrina was one of the most devastating natural disasters in United States history."
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The storm is blamed for the deaths of at least 1,200 people and ranks in the top 5 deadliest storms on record to strike the U.S. Katrina also caused an estimated $125 billion in damages, as major flooding inundated New Orleans and massive storm surge obliterated coastal areas of Mississippi and Alabama.
"The scope of human suffering inflicted by Hurricane Katrina in the United States has been greater than that of any hurricane to strike this country in several generations," the NHC said.
5. "Sea Islands" Hurricane of 1893
The Category 3 hurricane known as the "Sea Islands" hurricane struck the Georgia coast near Savannah on Aug. 27, 1893.
The storm packed winds of 120 mph and a large storm surge to the mainland and off-shore islands of Georgia and South Carolina, according to the NOAA/OAR/Atlantic Oceanographic and Meteorological Laboratory.
Between 1,000 and 2,000 people are believed to have died from the storm, according to the NHC.
4. "Cheniere Caminanda" Hurricane of 1893
The major Cheniere Caminanda hurricane roared onto the Louisiana coast on Oct. 2, 1893, at Category 4 strength with winds estimated at 133 mph, according to the NOAA.
The Cheniere Caminada Hurricane struck in October 1893. (NOAA)
A storm surge of nearly 18 feet swept away all but one house in the small community of Cheniere Caminanda, located west of Grand Island.
"My grandfather was born in February of that year, one of the few babies to survive," Windell Curole, General Manager of the South Lafourche Levee District, told FOX8 in September 2018. "Survival that night was dependent on how long you could hold onto something."
Around 779 of the town’s 1,471 people died in the storm, which is estimated to have killed between 1,100 and 1,400 in total, according to the NHC.
3. Hurricane Katina in 2005
Hurricane Katrina has the distinction of being tied for the costliest hurricane to strike the mainland U.S. but is also one of the deadliest.
Neighborhoods are flooded with oil and water two weeks after Hurricane Katrina went though New Orleans, Sept. 12, 2005. (REUTERS/Carlos Barria)
The storm is blamed for an estimated 1,200 deaths after levees broke and flooded New Orleans and massive storm surge inundated coastal Mississippi and Alabama.
"Despite the fact that inland fresh water floods produced the majority of fatalities due to tropical cyclones during the past few decades, Katrina provides a grim reminder that storm surge poses the greatest potential cause for large loss of life in a single hurricane in this country," the NHC said in its report.
2. The "Okeechobee Hurricane" of 1928
The second-deadliest storm to ever hit the U.S. struck in September 1928 when the Category 4 storm made landfall near Palm Beach on Sept. 16 before turning north over the Florida Peninsula.
Damage from the Okeechobee Hurricane in West Palm Beach, Florida. (NWS)
"This hurricane caused heavy casualties and extensive destruction along its path from the Leeward Islands to Florida," the NHC says in a fact-sheet. "The worst tragedy occurred at inland Lake Okeechobee in Florida, where the hurricane caused a lake surge of 6 to 9 feet that inundated the surrounding area."
The storm's death toll is estimated to be at least 2,500 people, with floodwaters that lasted in the area for weeks.
"The effect of the flood was devastating, and the loss of life, both human and animal, was apocalyptic," according to the NWS.
1. Galveston Hurricane in 1900
The deadliest natural disaster in American history took place on Sept. 8, 1900, when a Category 4 hurricane slammed into Galveston, Texas.
A view of the devastation caused by the Great Galveston Hurricane of 1900 that left between 8,000 to 12,000 dead. (Library of Congress)
Winds over 135 mph and a storm surge of 15 feet inundated the port city of 40,000 people that was filled with end-of-summer tourists.
Between 8,000 to 12,000 people were killed in the storm, and over 3,600 buildings were destroyed.
"Although Galveston was rebuilt, it never reestablished itself as the major port of call it once was," according to the NOAA. "The city was soon overshadowed by Houston, some miles inland and connected to the Gulf of Mexico by a canal."
The disaster brought the focus of hurricane prediction into the spotlight, which remains a major part of life today.
Fox News' Nicole Darrah and the Associated Press contributed to this report.