Dec. 9 (Bloomberg) -- The eastern U.S. may be warmer than normal into mid-December, according to forecasters.
Weather Derivatives Meteorologist David Salmon said temperatures may be 6 degrees Fahrenheit (3.3 Celsius) warmer than normal from Dec. 15 to Dec. 19 in his latest 6- to 10-day outlook.
Temperatures may be 10 degrees above normal from eastern Missouri to western Virginia and North Carolina, Salmon said from Belton, Missouri.
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 natural gas supplies, according to Energy Department data.
In his 6- to 10-day outlook, Commodity Weather Group LLC’s President Matt Rogers said he expects temperatures to be at least 5 degrees warmer than normal along the East Coast and about 3 degrees higher in interior regions.
The western U.S., particularly southern California and the Southwest, is expected to be cooler than normal, according to Rogers in Bethesda, Maryland.
In his 10- to 15-day outlook for Dec. 19 to Dec. 23, Rogers predicts most of the U.S. will have more seasonal temperatures with parts of the upper Great Plains being about 3 degrees warmer than normal.
Salmon didn’t release a comparable forecast.
The normal average temperature in New York on Dec. 17 is 38 degrees, according to MDA EarthSat Weather in Gaithersburg, Maryland. In Boston, it’s about 35, in Atlanta it’s 45, in Houston it’s 54, in Seattle it’s 40 and in Burbank, California it’s 54.
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