An oppressive hot and humid air mass produced excessive heat that resulted in day time temperatures 95 to 105 degrees with night time lows in the 70s and 80s. Heat indices peaked around 115 degrees during Friday afternoon, July 22.
Every event with a place to put it; 17 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OKX wrote it up.
An oppressive hot and humid air mass produced excessive heat that resulted in day time temperatures 95 to 105 degrees with night time lows in the 70s and 80s. Heat indices peaked around 115 degrees during Friday afternoon, July 22.
Prolonged excessive heat led to the death of at least 20 people in Southeast, NY; 19 in New York City (7 in Brooklyn, 6 in the Bronx, 4 in Manhattan, and 2 in Queens) and 1 in Orange County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New York, NY wrote its last area forecast discussion before the first event at Jul 21, 9:36 AM EST, 24 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
17 excessive heat. Local standard time, as filed.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. JFK airport reached 103 degrees on July 22nd, and 102 on the 23rd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. LGA airport and Central Park reached 104 degrees on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 114 degrees at noon and 1 PM in Central Park (KNYC) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 108 degrees at noon, 1 pm and 3 pm at Laguardia Airport (KLGA) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR), and 114 degrees at JFK Airport (KJFK) at 2 PM on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 112 degrees at noon at Farmingdale Airport (KFRG) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 112 degrees at noon at Farmingdale Airport (KFRG) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 113 degrees at 2 PM at Islip MacArthur Airport (KISP) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 113 degrees at 2 PM at Islip MacArthur Airport (KISP) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 115 degrees at Stewart Field Airport (KSWF) in Newburgh at 1 PM and 2 PM on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 109 degrees at 1 PM at Westchester County Airport (KHPN) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 109 degrees at 1 PM at Westchester County Airport (KHPN) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 109 degrees at 1 PM at Westchester County Airport (KHPN) on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 114 degrees at 1 PM at Shirley Airport (KHWV), and 113 degrees at Gabreski Westhampton Airport (KFOK) at 1 PM on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 114 degrees at 1 PM at Shirley Airport (KHWV), and 113 degrees at Gabreski Westhampton Airport (KFOK) at 1 PM on July 22nd.
Excessive heat between 95 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 107 degrees at 1 PM, 3 PM and 4 PM, at Poughkeepsie Airport (KPOU), and 115 degrees at Stewart Field Airport (KSWF) in Newburgh at 1 PM and 2 PM on July 22nd.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Excessive Heat, Kings (Brooklyn) | 2011-07-23 | 36 | Female | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-07-24 | 64 | Female | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-07-23 | 94 | Female | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-07-23 | 10 | Female | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-08-01 | 72 | Male | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-08-01 | 77 | Female | Unknown | Direct |
| Excessive Heat, Kings (Brooklyn) | 2011-08-01 | 33 | Male | Unknown | Direct |
| Excessive Heat, Southern Queens | 2011-07-22 | 30 | Female | Unknown | Direct |
| Excessive Heat, Southern Queens | 2011-07-24 | 73 | Male | Unknown | Direct |
| Excessive Heat, Bronx | 2011-07-23 | 78 | Female | Unknown | Direct |
| Excessive Heat, Bronx | 2011-07-23 | 72 | Female | Unknown | Direct |
| Excessive Heat, Bronx | 2011-07-24 | 52 | Male | Unknown | Direct |
| Excessive Heat, Bronx | 2011-07-23 | 97 | Female | Unknown | Direct |
| Excessive Heat, Bronx | 2011-08-21 | 64 | Female | Unknown | Direct |
| Excessive Heat, Bronx | 2011-08-04 | 84 | Female | Unknown | Direct |
| Excessive Heat, New York (Manhattan) | 2011-07-24 | 73 | Female | Unknown | Direct |
| Excessive Heat, New York (Manhattan) | 2011-07-24 | 60 | Male | Unknown | Direct |
| Excessive Heat, New York (Manhattan) | 2011-07-25 | 48 | Female | Unknown | Direct |
| Excessive Heat, New York (Manhattan) | 2011-07-22 | 73 | Male | Unknown | Direct |
| Excessive Heat, Orange | 2011-07-22 | 18 | Male | Unknown | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2011Every state in 2011This day in weather historyWarnings in New York, July 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 328205, 328206, 328208, 328480, 328486, 328511, 328460, 328462, 328490, 328493, 328267, 328467, 328471, 328474, 328498, 328501, 328506.