How much rain fell in NY, NJ amid historic Ida flooding?

New York (WABC) -- New York and New Jersey were hit with catastrophic flash flooding Wednesday evening that continued into Thursday, with water rescues, roads, homes and cars under feet of water, transportation stalled, people stranded on roofs of cars and more.

The remnants from what was once Hurricane Ida interacted with a frontal system and unleashed record amounts of rain across the region.

The flooding was so bad that the National Weather Service in New York issued a Flash Flood Emergency, the highest flash flood threat level, for all five boroughs of New York City and North Jersey for the first time ever.

Rainfall rates of 3 to 5 inches have been recorded in Northeast New Jersey and portions of NYC. Newark Airport reported 3.24 inches of rain from 8 to 9 p.m.

3.15 inches of rain in just one hour at Central Park from 8:50 to 9:50 p.m. This is a new record for the wettest hour in Central Park. Nearly all of that fell within just 3 hours.

If that sounds familiar, it's because New York City just set the wettest hour on record at Central Park only 11 days ago from rains related to Hurricane Henri, when 1.94 inches fell between 10 and 11 p.m. on Saturday, Aug. 21.

Rainfall totals:

Location Amount Time/Date Provider

...Connecticut...

...Fairfield County...

Stamford 6.91 in 0605 AM 09/02 AWS

Stamford 6.78 in 0600 AM 09/02 Unknown

Danbury 6.63 in 0606 AM 09/02 CWOP

Greenwich 6.19 in 0615 AM 09/02 AWS

Bridgeport Airport 5.94 in 0552 AM 09/02 ASOS

Westport 5.94 in 0645 AM 09/02 CWOP

Fairfield 5.86 in 0605 AM 09/02 CWOP

Danbury 5.72 in 0606 AM 09/02 CWOP

3 N New Canaan 4.99 in 0615 AM 09/02 AWS

Danbury Airport 4.64 in 0553 AM 09/02 ASOS

Ridgefield 3.90 in 0610 AM 09/02 AWS

...Middlesex County...

Middletown 6.95 in 0610 AM 09/02 CWOP

Chester Center 2.7 WNW 6.46 in 0636 AM 09/02 COCORAHS

Westbrook 5.91 in 0601 AM 09/02 CWOP

Middlefield 5.06 in 0614 AM 09/02 AWS

3.3 N Moodus 3.67 in 0515 AM 09/02 HADS

...New Haven County...

Milford 6.50 in 0606 AM 09/02 CWOP

Hamden 5.72 in 0601 AM 09/02 CWOP

Guilford 5.55 in 0700 AM 09/02 CO-OP Observer

Meriden Airport 4.96 in 0553 AM 09/02 ASOS

New Haven 4.54 in 0615 AM 09/02 AWS

New Haven Airport 4.53 in 0553 AM 09/02 ASOS

Wolcott 4.41 in 0610 AM 09/02 AWS

Branford 4.38 in 0619 AM 09/02 AWS

New Haven 4.03 in 0650 AM 09/02 AWS

West Haven 2.31 in 0610 AM 09/02 AWS

Cheshire 2.07 in 0605 AM 09/02 CWOP

...New London County...

Norwich 7.48 in 0600 AM 09/02 COCORAHS

East Lyme 7.36 in 0600 AM 09/02 COCORAHS

2 N Ledyard Center 6.45 in 0615 AM 09/02 Cocorahs

New London 5.72 in 0609 AM 09/02 CWOP

New London 4.93 in 0615 AM 09/02 AWS

Groton Airport 3.64 in 0556 AM 09/02 ASOS

...New Jersey...

...Bergen County...

Waldwick 8.59 in 0600 AM 09/02 CWOP

Hasbrouck Heights 8.01 in 0609 AM 09/02 CWOP

New Milford 7.28 in 0615 AM 09/02 AWS

Tenafly 7.26 in 0556 AM 09/02 CWOP

New Milford 7.23 in 0605 AM 09/02 AWS

Tenafly 7.22 in 0556 AM 09/02 CWOP

Teterboro 7.14 in 0635 AM 09/02 ASOS

Lodi 6.92 in 0600 AM 09/02 Unknown

Paramus 6.72 in 0615 AM 09/02 AWS

Paramus 6.68 in 0610 AM 09/02 AWS

Little Ferry 5.69 in 0615 AM 09/02 AWS

River Vale 4.36 in 0615 AM 09/02 AWS

Bogota 4.18 in 0619 AM 09/02 AWS

Mahwah 3.88 in 0615 AM 09/02 AWS

...Essex County...

Newark 8.44 in 0624 AM 09/02 ASOS

Maplewood 8.16 in 0600 AM 09/02 Unknown

Essex Fells 7.08 in 0600 AM 09/02 Unknown

0.6 SW Caldwell 6.64 in 0545 AM 09/02 IFLOWS

West Caldwell 6.57 in 0605 AM 09/02 CWOP

West Orange 6.54 in 0605 AM 09/02 CWOP

Caldwell 6.20 in 0553 AM 09/02 ASOS

West Orange 6.02 in 0650 AM 09/02 URBANET

Glen Ridge 5.70 in 0614 AM 09/02 AWS

...Hudson County...

Harrison 8.61 in 0601 AM 09/02 CWOP

Harrison 6.77 in 0614 AM 09/02 URBANET

Kearny 6.70 in 0607 AM 09/02 CWOP

Jersey City 6.57 in 0615 AM 09/02 AWS

1 ENE Jersey City 5.68 in 0620 AM 09/02 AWS

Hoboken 4.92 in 0607 AM 09/02 CWOP

...Passaic County...

Passaic 8.43 in 0603 AM 09/02 CWOP

Clifton 6.87 in 0615 AM 09/02 AWS

West Milford 3.48 in 0545 AM 09/02 IFLOWS

...Union County...

Linden 6.72 in 0600 AM 09/02 AWOS

...New York...

...Bronx County...

Fordham 7.38 in 0620 AM 09/02 NYSM

Harlem 6.00 in 0610 AM 09/02 AWS

...Kings County...

Brooklyn 7.76 in 0605 AM 09/02 CWOP

South Slope 7.01 in 0605 AM 09/02 CWOP

Prospect Park 5.87 in 0610 AM 09/02 AWS

Dyker Heights 4.48 in 0610 AM 09/02 CWOP

...Nassau County...

Glen Head 4.87 in 0610 AM 09/02 AWS

Oyster Bay 4.80 in 0600 AM 09/02 CWOP

East Hills 4.46 in 0615 AM 09/02 AWS

Valley Stream 2.78 in 0606 AM 09/02 CWOP

Freeport 2.49 in 0610 AM 09/02 AWS

North Massapequa 2.48 in 0606 AM 09/02 CWOP

...New York County...

Midtown Manhattan 7.49 in 0625 AM 09/02 NYSM

Central Park 7.19 in 0551 AM 09/02 ASOS

Battery Park 4.56 in 0650 AM 09/02 AWS

...Orange County...

Vails Gate 5.74 in 0606 AM 09/02 CWOP

Montgomery Airport 5.65 in 0554 AM 09/02 AWOS

Otisville 5.25 in 0620 AM 09/02 NYSM

...Queens County...

Flushing 6.90 in 0558 AM 09/02 COCORAHS

NYC/La Guardia 6.89 in 0635 AM 09/02 ASOS

Kew Garden Hills 5.77 in 0625 AM 09/02 NYSM

Beechhurst 3.90 in 0607 AM 09/02 CWOP

NYC/JFK Airport 2.77 in 0551 AM 09/02 ASOS

...Richmond County...

Staten Island 8.92 in 0600 AM 09/02 CWOP

College of Staten Island 8.31 in 0620 AM 09/02 NYSM

Eltingville 5.78 in 0600 AM 09/02 CWOP

...Rockland County...

Suffern 5.03 in 0615 AM 09/02 NYSM

New City 4.14 in 0610 AM 09/02 AWS

Pomona 3.56 in 0620 AM 09/02 AWS

...Suffolk County...

East Setauket 6.86 in 0647 AM 09/02 CWOP

Miller Place 6.69 in 0605 AM 09/02 CWOP

Centereach 6.63 in 0600 AM 09/02 COCORAHS

Miller Place 6.14 in 0606 AM 09/02 CWOP

Stony Brook 6.03 in 0650 AM 09/02 NYSM

Saint James 5.02 in 0605 AM 09/02 CWOP

Stony Brook 3.77 in 0602 AM 09/02 CWOP

Southold 3.72 in 0615 AM 09/02 NYSM

Smithtown 3.23 in 0601 AM 09/02 CWOP

Montauk Airport 3.20 in 0554 AM 09/02 ASOS

Islip 2.63 in 0608 AM 09/02 ASOS

Upton 2.40 in 0800 AM 09/02 Official NWS Obs

East Hampton 2.38 in 0555 AM 09/02 AWOS

Melville 2.18 in 0609 AM 09/02 CWOP

West Islip 2.15 in 0609 AM 09/02 CWOP

Farmingdale Airport 2.01 in 0553 AM 09/02 ASOS

Westhampton Airport 1.73 in 0553 AM 09/02 ASOS

...Westchester County...

1 N Mount Kisco 8.46 in 0400 AM 09/02 Public

New Rochelle 7.79 in 0605 AM 09/02 AWS

New Rochelle 7.12 in 0545 AM 09/02 CWOP

Tarrytown 6.97 in 0607 AM 09/02 CWOP

Tarrytown 6.94 in 0607 AM 09/02 CWOP

Armonk 6.78 in 0608 AM 09/02 CWOP

Ossining 6.44 in 0608 AM 09/02 CWOP

White Plains Airport 6.16 in 0556 AM 09/02 ASOS

Pleasantville 6.12 in 0610 AM 09/02 AWS

Eastchester 6.06 in 0614 AM 09/02 AWS

Elmsford 4.92 in 0649 AM 09/02 AWS

Shrub Oak 4.57 in 0600 AM 09/02 COOP