page_title: 2010 Northern Hemisphere heat waves
section_title: United States
hierarchical_section_title: 2010 Northern Hemisphere heat waves / Events / North America / United States
caption_attribution_description: After the game, in the fountain
context_page_description: The 2010 Northern Hemisphere summer heat waves included severe heat waves that impacted most of the United States, Kazakhstan, Mongolia, China, Hong Kong, North Africa and the European continent as a whole, along with parts of Canada, Russia, Indochina, South Korea and Japan during May, June, July, and August 2010. The first phase of the global heatwaves was caused by a moderate El Niño event, which lasted from June 2009 to May 2010. The first phase lasted only from April 2010 to June 2010, and caused only moderate above average temperatures in the areas affected. But it also set new record high temperatures for most of the area affected, in the Northern Hemisphere. The second phase was caused by a very strong La Niña event, which lasted from June 2010 to June 2011. According to meteorologists, the 2010–11 La Niña event was one of the strongest La Niña events ever observed. That same La Niña event also had devastating effects in the Eastern states of Australia. The second phase lasted from June 2010 to October 2010, caused severe heat waves, and multiple record-breaking temperatures.
context_section_description: In Frederick, Maryland, the temperature reached 106 °F (41 °C) in early July. Power outages in New York and in Southern Ontario were reported to have been caused by the heatwave.
  June 24 saw a high pressure zone settle between North Carolina and Bermuda.  A two-day-long heat wave hit the more rural parts of Texas on July 1.
  From July 4 to July 9, 2010, the majority of the American East Coast, from the Carolinas to Maine, was gripped in a severe heat wave.  Both Philadelphia and New York City, as well as Baltimore, Washington, Raleigh, and Boston, eclipsed 100 °F (38 °C).  Many records were broken, some of which dated back to the 19th century, including Wilmington, Delaware's temperature of 103 °F (39 °C) on Wednesday, July 7, which broke the record of 97 °F (36 °C) from 1897. Philadelphia and New York eclipsed 100 °F (38 °C) for the first time since 2001. Frederick, Maryland and Newark, New Jersey, among others, exceeded 100 °F (38 °C) for four days in a row.
  Cleveland, Ohio, was rising into the upper 90s on July 8. Meanwhile, various authorities on the U.S. Eastern Seaboard issued extreme heat alerts, with the temperature being forecast to rise well beyond 30 °C in some areas on the 5th.
  The American northeast was severely affected as New York City saw a record temperature of 103 °F (39.4 °C) on July 6, and the heat hit 100.4 °F (38.0 °C) in Boston, and 40.6 °C in Baltimore on the same day, breaking the standing Baltimore record from 1983.
  New York City saw temperatures as high as 35 °C in some areas and it was predicted to reach 38 °C the next day. A report released by The Wall Street Journal on July 7 stated that June saw sales rise over the Independence Day holiday, especially along the East Coast of America. By July 3, retail sales had risen by 3.9% from the year-ago period and 1% over the previous week, according to the International Council of Shopping Centers and Goldman Sachs and Johnson Redbook Research also showed a sales gain in the final week of June, citing the hot weather.
  Both the American East Coast and parts of the American Midwest had record high temperatures, killing two people on the 8th. Authorities in Washington, D.C., New York City, Maine, Ottawa, Montreal and Toronto issued safety advice to its residents.
  Several power outages across the United States occurred due to increased demand, and also a transformer fire; lack of air conditioning led to the death of an elderly Philadelphia man and a homeless woman in Detroit.  Canadian media outlets also stated that there had been a large increase of people visiting hospital during the heat wave, such as Montfort Hospital, which reported 158 patients in one day.
  The Associated Press reported that "the hot weather was blamed for the deaths of 89-year-old Edward Pilch in Whitehall, PA, and a 46-year-old woman in Queens." The heat also caused rail disruptions in Washington after the metal track expanded and could not be contained by the dampers.
  The BBC stated that electricity providers were "urging consumers to cut back on energy use to relieve the stress on the power system ... in Philadelphia alone, 8,000 people lost power due to increased demand on Tuesday [6th July]" News agencies stated that people had been staying in air-conditioned churches to avoid the heat.  Consolidated Edison sent out dry ice to customers with no electricity.
  The U.S. East Coast and parts of the Midwest saw temperatures reaching up to 38 °C on July 11.  The electricity grid in New York City was near collapse as Consolidated Edison cut electricity to air conditioning units and 20,000 homes and businesses to ease the burden on its failing system, according to The New York Times.  Various utilities urged customers to use less electricity as the aging power grid began to falter under the heat wave that ran from Virginia to Maine via New York.  About 375,400 customers in the New York City neighborhoods of Flushing, Gowanus, Forest Hills and Brooklyn Heights were victims of limited power outages in New York on July 11.
  For the Midwest became more related to the extreme high humidity, a
caption: 2010 FIFA World Cup revelers in Washington DC cool off in a fountain
exif: {"Image Make": "Panasonic", "Image Model": "DMC-GF1", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2010:07:12 09:24:26", "Image ExifOffset": "152", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "528", "Thumbnail JPEGInterchangeFormatLength": "17731", "EXIF ExposureTime": "1/2000", "EXIF FNumber": "8", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2010:07:11 17:39:09", "EXIF DateTimeDigitized": "2010:07:11 17:39:09", "EXIF ShutterSpeedValue": "1370723/125000", "EXIF ApertureValue": "6", "EXIF ExposureBiasValue": "-33/100", "EXIF MaxApertureValue": "49/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "20", "EXIF FileSource": "Digital Camera"}