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2015 Long-Range Weather Forecast for Williamsport, Pennsylvania

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(Nov. 2014 - Oct. 2015)

Complete 2015 Long-Range Weather Forecast for the Appalachians Region, November 2014 to October 2015 includes week-by-week details.

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Map showing long-range weather ragion

DECEMBER 2014: temperature 32° (4° below avg.); precipitation 4" (1" above avg.); Dec 1-5: Showers, mild; Dec 6-14: Snow, then flurries, cold; Dec 15-17: Snowstorm, then sunny, very cold; Dec 18-21: Heavy snow, then flurries, cold; Dec 22-31: Snow showers, cold.

JANUARY 2015: temperature 26° (4° below avg.); precipitation 2" (1" below avg.); Jan 1-3: Sunny, very cold; Jan 4-8: Snow showers, cold; Jan 9-11: Sunny, mild; Jan 12-17: Snow showers, very cold; Jan 18-22: Rain and snow showers, turning quite mild; Jan 23-25: Sunny, mild; Jan 26-31: Rain, then flurries, cold.

Annual Weather Summary: November 2014 to October 2015

Winter will be much colder than normal, with slightly below-normal precipitation and snowfall. The coldest periods will occur in early to mid-December, from late December into early January, and in mid- and late January. The snowiest periods will occur in mid-December and early February.

April and May will be warmer and drier than normal.

Summer rainfall and temperatures will be close to normal, on average, with the hottest periods in mid- to late June, mid- to late July, and mid-September.

September and October will be warmer than normal. Rainfall will be below normal in the north and above normal in the south.

Temperature and Precipitation November 2014 to October 2015

Temperature and Precipitation Graph

See Long-Range Weather Forecasts for major cities in Pennsylvania.


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