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2015 Long-Range Weather Forecast for Hamilton, Montana

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(Nov. 2014 - Oct. 2015)

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

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Map showing long-range weather ragion

SEPTEMBER 2015: temperature 58° (4° below avg.); precipitation 0.8" (0.5" above avg. north, 1" below south); Sep 1-11: Sunny, chilly; Sep 12-19: Scattered showers, cool; Sep 20-26: Sunny, warm; Sep 27-30: Showers, cool.

OCTOBER 2015: temperature 48° (3° below avg.); precipitation 1" (avg.); Oct 1-10: Showers, then sunny, cool; Oct 11-16: Showers, cool; Oct 17-25: Sunny north, rain and snow showers south; cool; Oct 26-31: Showers north, sunny south; mild.

Annual Weather Summary: November 2014 to October 2015

Winter temperatures will be above normal, with below-normal snowfall and with precipitation above normal north, below south. The coldest periods will be late December and mid- to late February north, and mid-December south. The snowiest period in northern and central sections will be in early December; mid-February and early to mid-March in the south.

April and May will be slightly drier than normal, with near-normal temperatures.

Summer will be hotter than normal, with above-normal rainfall. The hottest periods will be in mid- and late June, early July, and mid- to late July.

September and October will be cooler than normal, with precipitation slightly above normal in the north and below in the south.

Temperature and Precipitation November 2014 to October 2015

Temperature and Precipitation Graph

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


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