New York Posts Hottest Day of 2015 as Heat Forecast to Break

Updated on
  • Highs in the 90s to fall back as week goes on along East Coast
  • California flirts with its hottest week of this year

New York had its hottest day of the year Tuesday and the heat baking the East Coast will start to break Wednesday even as it lingers on in the West.

Manhattan’s Central Park reached 97 degrees Fahrenheit (36 Celsius), which broke the old record for the day set in 1919, said Carlie Buccola, a National Weather Service meteorologist in Upton, New York.

“Today was the hottest day of the year,” Buccola said by telephone. “The previous hottest was 96 on July 29.”

The heat in New York was also felt in Boston, which also posted a daily record of 96, according to the weather service. San Francisco is predicted to hit 96, Los Angeles 97 and parts of the Central Valley flirting with 100.

“Today is probably the last day of it in New England,” said Richard Baan, a meteorologist with the U.S. Weather Prediction Center in College Park, Maryland.

High temperatures in large population areas can push up electric use as people turn to air conditioning to cool down. This has a ripple effect across markets as wholesale electricity rates can rise, along with natural gas prices because the fuel is needed to produce power. Power plants account for about 33 percent of gas demand, according to the U.S. Energy Information Administration.

More Gradual

The cool down along the East Coast is forecast to be more gradual in the Middle-Atlantic region, with Washington finally dropping to a high of 81 by Saturday, the weather service said.

A cooler air mass across the Midwest, which could lead to highs in the 60s there, will help push readings in the Northeast into the 70s, said Baan.

In the West, though, little will change for the next five days.

“California looks to maybe log its hottest week of this year thanks to several 100-plus readings, but pulls back next week,” said Matt Rogers, president of the Commodity Weather Group LLC in Bethesda, Maryland.

A heat advisory is in place in and around San Francisco, San Jose and Santa Rosa through Wednesday, the weather service said. An excessive heat warning, meaning readings may become dangerous, is in place for greater Los Angeles.

The higher temperatures will linger through mid-September. Commodity Weather calls for readings 5 degrees higher than normal from Sept. 13 to 17 and about 3 degrees higher from Sept. 18 to 22.