Tropical cyclones move into the contiguous United States from the Atlantic Ocean, the Gulf of Mexico, and the eastern Pacific Ocean. The highest rainfall totals in the country have been measured across the Gulf Coast and lower portions of the Eastern Seaboard. Intermediate amounts have been measured across the Southwest, New England, and the Midwest. The northern Great Plains and Pacific Northwest have received the lowest amounts, as those regions lie exceptionally far from the breeding grounds of Atlantic and Eastern Pacific tropical cyclones.

The wettest tropical cyclone in the United States storm on record is Hurricane Harvey, which dumped of rain on Southeast Texas in 2017. Tropical Storm Claudette holds the national 24-hour rainfall record: in Alvin, Texas.

Overall wettest

The 10 highest rainfall amounts from tropical cyclones in the United States since 1950, including territories.

1 1538.7 60.58 Harvey 2017 Nederland, Texas 2 1473 58.00 Lane 2018 Kahūnā Falls, Hawaii 3 1321 52.00 Hiki 1950 Kanalohuluhulu Ranger Station, Hawaii 4 1219 48.00 Amelia 1978 Medina, Texas 5 1148 45.20 Easy 1950 Yankeetown, Florida 6 1143 45.00 Claudette 1979 Alvin, Texas 7 1125 44.29 Imelda 2019 Fannett 2 SSW, Texas 8 1106 43.54 Lala 2026 Laupāhoehoe, Hawaii 9 1058.7 41.68 Fifteen 1970 Jayuya, Puerto Rico 10 1033 40.68 Allison 2001 Northwest Jefferson County, Texas

Overall wettest in the contiguous United States

The 10 highest rainfall amounts from tropical cyclones in the contiguous United States since 1950. Amelia 1978 held the record until Hurricane Harvey dropped 60.58 inches (1538.7 mm) in 2017.

1 Harvey 2017 Nederland, Texas 2 Amelia 1978 Medina, Texas 3 Easy 1950 Yankeetown, Florida 4 Claudette 1979 Alvin, Texas 5 Imelda 2019 Fannett 2 SSW, Texas 6 Allison 2001 Northwest Jefferson County, Texas 7 Georges 1998 Munson, Florida 8 Danny 1997 Dauphin Island Sea Lab, Alabama 9 Florence 2018 Elizabethtown, North Carolina 10 Helene 2024 Busick, North Carolina

Alabama

The wettest tropical cyclone to hit the state of Alabama was Hurricane Danny, which stalled over Mobile Bay for over 24 hours.

1 Danny 1997 Dauphin Island Sea Lab 2 Sally 2020 Orange Beach 3 753.4 29.66 Georges 1998 Bay Minette 4 574.8 22.63 Alberto 1994 Enterprise 5 NNW 5 493.3 19.42 Opal 1995 Brewton 3 ENE 6 469.9 18.50 1926 Miami hurricane Bay Minette 7 428.0 16.85 Debbie 1965 Mobile 8 420.6 16.56 Unnamed 1987 Brewton 3 SSE 9 408.7 16.09 Beryl 1988 Dauphin Island #2 10 393.7 15.50 Tropical Storm Two 1931 Seven Hill

Alaska No storm has ever affected Alaska as a tropical cyclone, but extratropical remnants of tropical cyclones have brought heavy rainfall to the state. Examples include the extratropical remnants of Hurricane Fico in 1978.

American Samoa

Tropical cyclones affect the island chain with tropical storm-force winds once every three years, on average. The wettest known cyclone to affect the island group occurred early in 1966, when nearly fell at Vaipito.

Arizona

Hurricane Nora was the last tropical cyclone to enter the United States from Mexico at tropical storm strength. The rainfall which fell across the Harquahala Mountains led to the state's 24-hour rainfall record.

Arkansas

Although having weakened significantly by the time it reached the state, the slow movement of Hurricane Barry over Arkansas led to a widespread and significant flooding event. Murfreesboro saw the greatest rainfall accumulation at 14.58 inches (370.3 mm), which is the highest total ever recorded from a tropical cyclone in the state of Arkansas.

1 421.4 16.59 Barry 2019 Dierks 2 353.3 13.91 Allison 1989 Portland 3 349.8 13.77 Bertha 1957 Damascus 2 NNE 4 298.5 11.75 Bonnie 1986 El Dorado Regional AP 5 298.2 11.74 Gustav 2008 Eudora/Bayou Macon 6 286.8 11.29 Isaac 2012 White Hall 0.8 SE 7 283.5 11.16 Unnamed 1960 Clarendon 8 265.4 10.45 Frances 1998 Sparkman 9 253.0 9.96 Harvey 2017 Watson 9 N 10 248.9 9.80 Hurricane Two, 1942 Springbank

California

One of six known eastern Pacific tropical cyclones to bring tropical storm-force winds to the Southwest, Hurricane Kathleen accelerated northward ahead of an upper-level trough, spreading heavy rains into the transverse ranges of southern California.

1 Kathleen 1976 San Gorgonio 2 Hilary 2023 Mount San Jacinto 3 Unnamed 1939 Mount Wilson 4 Unnamed 1918 Wrights 5 Doreen 1977 Mount San Jacinto 6 Olivia 1982 Grant Grove 7 Norman 1978 Lodgepole 8 Ivo 2013 Julian 5 SW 9 Dolores 2015 Ramona 10 Nora 1997 Beaumont 1 E

Colorado

Few tropical cyclone remnants originating from the eastern Pacific make it as far north as Colorado. Javier dropped locally heavy rainfall exceeding over the higher terrain of western Colorado in 2004.

1 207 8.16 Unnamed (1911) Gladstone 2 135.9 5.35 Lester 1992 Wolf Creek Pass 1 E 3 109.2 4.30 Javier 2004 Beartown 4 68.6 2.70 Blanca 2015 Paonia 15 NW 5 48.3 1.90 Dolly 2008 Her

Connecticut

While Hurricane Diane is the wettest known tropical cyclone to impact New England, the 1938 New England hurricane produced the most rain in the state of Connecticut. Nonetheless, the flood from Hurricane Diane led to a significant death toll (nearly 200) from Pennsylvania eastward through southern New England.

1 434.3 17.10 1938 New England hurricane Buck 2 428.2 16.86 Diane 1955 Torrington #2 3 338.3 13.32 Eloise 1975 Mount Carmel 4 289.6 11.40 Floyd 1999 West Hartford 5 257.8 10.15 Irene 2011 New Hartford 6 240.8 9.48 Connie 1955 Round Pond 7 185.9 7.34 Donna 1960 Wolcott Reservoir 8 176.5 6.95 Ida 2021 Middletown 9 162.3 6.39 Lee 2011 Danbury 10 158.0 6.22 Bob 1991 Norwich Public Utility Plant

Delaware

A large swath of heavy rainfall spread associated with a predecessor rainfall event fell before 1933 Chesapeake–Potomac hurricane arrived in Delaware. Over four days, a total of of rain fell in Bridgeville, the most known associated with a tropical cyclone anywhere in Delaware.

1 335.3 13.20 1933 Chesapeake–Potomac hurricane Bridgeville 2 278.9 10.98 Sandy 2012 Indian River Inlet 3 268.7 10.58 Floyd 1999 Greenwood 2 NE 4 264.9 10.43 Irene 2011 Ellendale 5 207.8 8.18 Connie 1955 Newark University Farm 6 195.6 7.70 Donna 1960 Bridgeville 1 NW 7 193.0 7.60 Agnes 1972 Middletown 3 E 8 181.1 7.13 Danny 1985 Lewes 9 177.0 6.97 Debby 2024 Newark 10 174.5 6.87 Allison 1989 Wilmington New Castle

Florida

The heaviest rainfall to occur in 24 hours was measured in Yankeetown during Hurricane Easy in 1950, which caused of precipitation. This is also the highest known point storm total maximum related to any tropical cyclone which has impacted Florida, and by itself would be the highest known rainfall total for any month, or any 24 hour period, from any location within Florida. This rainfall amount remained the national 24-hour rainfall record until Tropical Storm Claudette's landfall in 1979.

1 1148.1 45.20 Easy 1950 Yankeetown 2 976.9 38.46 Georges 1998 Munson 3 889.0 35.00 October Hurricane 1941 Trenton 4 800.6 31.52 Ian 2022 Ponce Inlet 5 762.0 30.00 Sally 2020 Pensacola 6 731.0 28.78 Debby 2012 Curtis Mill 7 702.3 27.65 Fay 2008 Melbourne/Windover Farms 8 649.2 25.56 Dennis 1981 Homestead/Ira Ebersole 9 635.0 25.00 TD 1, 1992 Arcadia Tower 10 634.5 24.98 Jeanne 1980 Key West International Airport

Georgia

Tropical Storm Alberto in 1994 looped across central Georgia, leading to 24-hour rainfall amounts exceeding across central sections of the state. It also became the wettest tropical cyclone on record for the state of Georgia, eclipsing the record set in 1929.

1 707.4 27.85 Alberto 1994 Americus 2 621.3 24.46 1929 Bahamas hurricane Washington 3 558.8 22.00 T. D. #29 1969 Attapulgus Mine 4 541.0 21.30 Fay 2008 Thomasville 5 WNW 5 508.0 20.00 1929 Bahamas hurricane Glennville 6 505.2 19.89 Marco 1990 Louisville 1E 7 444.0 17.48 Matthew 2016 Savannah Hunter Field 8 412.5 16.24 Easy 1950 Savannah Hunter Field 9 395.2 15.56 Hanna 2002 Donalsonville 10 376.4 14.82 Debby 2024 Oliver

Guam

Super Typhoon Pamela was not only a wet tropical cyclone for the island of Guam, but a destructive one as well. Since Pamela, wooden structures across Guam have been largely replaced by concrete structures in order to better weather typhoons.

Hawaii

This island state frequently sees rainfall from the remains of former eastern and central Pacific tropical cyclones. However, despite Hawaii's location in the subtropics, direct impacts by tropical cyclones are infrequent due to the protective influence of the Central Pacific tropical upper tropospheric trough (TUTT), which normally dissipates systems approaching Hawaii. Hurricane Hiki in 1950 led to significant rainfall in the mountains, with of rainfall reported. This was the most rainfall reported to have been produced by a tropical cyclone within the United States until surpassed by Hurricane Harvey in 2017.

Idaho

Impacts from tropical cyclones in the Pacific Northwest are rare. Most recently, the remnants of Hilary moved through the region in 2023, spurring moderate to heavy rainfall across Idaho.

1 Hilary 2023 Dollarhide Summit 2 Kathleen 1976 Ketchum RS 3 Olivia 1982 Powell

Illinois

Hurricane Audrey directed moisture up to a front to its north across the Midwest during late June 1957 as it transitioned into an extratropical cyclone. Heavy rains fell across central Illinois, leading to the wettest known event to be associated with a tropical cyclone or its remnants across Illinois. More recently, the remnants of Hurricane Ike brought heavy flooding to the Chicago area in September 2008.

1 259.1 10.20 Audrey 1957 Paris 2 209.6 8.25 Ike 2008 Elburn 3 207.8 8.18 Carla 1961 Mount Carroll 4 108.5 7.64 Claudette 1979 Hutsonville Power Station 5 192.5 7.58 Paine 1986 Avon 5 NE 6 178.6 7.03 Tico 1983 New Athens 7 156.5 6.16 Hermine 2010 Grand Chain 8 152.7 6.01 Alberto 2018 Glencoe 0.1 NW 9 151.4 5.96 Lester 1992 Mattoon 10 146.1 5.75 Chantal 1989 Fulton Dam 13

Indiana

Indiana experienced its wettest tropical cyclone in 2008 with the arrival of Hurricane Ike. In 1979, Hurricane Bob produced considerable flooding in the state.

1 236.2 9.30 Ike 2008 South Bend 2.7 ESE 2 225.3 8.87 Audrey 1957 Rockville 3 209.8 8.26 Tico 1983 Seymour 2 N 4 174.2 6.86 Isidore 2002 Lexington 3 N 5 170.7 6.72 Bill 2015 Grissom AFB 6 162.6 6.40 Cindy 2017 Albany 7 162.6 6.40 Erin 1995 North Vernon 1 NW 8 153.7 6.05 Beryl 2024 Rensselaer 6.2 SE 9 146.6 5.77 Claudette 1979 Jasper 10 145.3 5.72 Bob 1979 Edwardsport Power Plant

Iowa

Hurricane Carla was a large hurricane that moved into Texas during September 1961. As it transitioned into an extratropical cyclone across the Great Plains and Midwest, heavy rain fell in a band on the poleward side of a frontal boundary extending northeast from Carla, leading to the wettest known event to be associated with a tropical cyclone or its remains across Iowa.

1 229.4 9.03 Carla 1961 Chariton 1 E 2 124.5 4.90 Frances 1998 Fort Madison 3 120.9 4.76 Paine 1986 Keokuk Lock Dam 19 4 99.8 3.93 Waldo 1985 Keosauqua 5 94.0 3.70 Newton 1986 Mount Pleasant 1 SSW 6 86.4 3.40 Chantal 1989 De Witt 7 84.3 3.32 Lester 1992 Sigourney 8 82.3 3.24 Gustav 2008 Rathbun Dam 2 N 9 79.0 3.11 Tico 1983 Centerville 10 60.7 2.39 Juan 1985 Bellevue Lock and Dam 12

Kansas

Heavy rainfall from Tropical Storm Frances fell from the western Gulf Coast northward into the Great Plains. Spreading across portions of Kansas, precipitation included with localized amounts above .

1 317.5 12.50 Frances 1998 Fort Scott 2 288.3 11.35 Paine 1986 Fort Scott 3 216.4 8.52 Carla 1961 Haddam 4 170.4 6.71 Tico 1983 Independence 5 147.1 5.79 Newton 1986 Tonganoxie 5 SE 6 138.4 5.45 Waldo 1985 Burns 7 127.0 5.00 Gilbert 1988 Cedar Vale 8 117.6 4.63 Norma 1981 Iola 1 W 9 114.6 4.51 Matthew 2004 Hale 10 104.4 4.11 Gustav 2008 Pittsburg

Kentucky