Nov. 28 (Bloomberg) -- The U.S. Northeast may continue to be warmer than normal through this week while returning to more seasonal weather by this weekend, according to Matt Rogers, president of Commodity Weather Group LLC.
In his 1- to 5-day outlook, Rogers said the Northeast from Pennsylvania and New Jersey northward is expected to be a least 8 degrees Fahrenheit (4.4 Celsius) above normal. Temperatures in parts of Maine, the Canadian Maritimes and Quebec may be 15 degrees higher.
The high temperature in New York’s Central Park was 63 degrees yesterday, or 13 degrees above normal, according to the National Weather Service. It was 55 degrees, or 7 above normal in Boston; 66 in Philadelphia, 14 above normal, and 72 in Washington, 19 above normal.
Traders use long-range temperature predictions to gauge energy use and market fluctuations. Hot or cold weather can increase demand for heating and cooling. Power plants use about 30 percent of the nation’s gas supplies, according to Energy Department data.
By next week, temperatures are forecast to fall along the East Coast and across the Midwest and Great Plains, said Rogers, basing his prediction on computer models.
“The high degree of variance from model run to run suggests we are probably entering a period of reduced model skill,” Rogers said in a note to clients today.
In his 6- to 10-day forecast, Rogers said colder weather may develop from California to Alabama and as far north as Iowa. The rest of the U.S. is expected to be more seasonal, with the exception of parts of Montana that may be warmer from Dec. 3 to Dec. 7.
Rogers said the bulk of the U.S. is forecast to remain seasonal from Dec. 8 to Dec. 12, with the exception of the southern part of the country, which may be cooler.
For Dec. 2, the average normal temperature in New York is about 43 degrees. It’s 40 in Boston, 44 in Washington, 49 in Atlanta, 32 in Chicago, 39 in St. Louis, 42 in Seattle and 55 in Burbank, California, according to MDA EarthSat Weather in Gaithersburg, Maryland.
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