Complete 2015 Long-Range Weather Forecast for the Intermountain Region, November 2014 to October 2015 includes week-by-week details.
Free 2-Month Weather Forecast
DECEMBER 2014: temperature 35° (2° above avg.); precipitation 1.5" (0.5" above avg. north, 0.5" below south); Dec 1-3: Snow showers, cold north; sunny, mild south; Dec 4-7: Rainy north, sunny south; mild; Dec 8-10: Sunny; Dec 11-15: Rainy, mild north; sunny, cold south; Dec 16-21: Rain, then snow showers north; sunny, cold south; Dec 22-31: Snow showers; cold north, mild south.
JANUARY 2015: temperature 39° (7° above avg.); precipitation 2" (2" above avg. north, 1" below south); Jan 1-10: Periods of rain and snow north and central; sunny, mild south; Jan 11-16: Rainy periods, mild north; sunny south; Jan 17-21: Periods of rain and snow north, sunny south; mild; Jan 22-31: Rain and snow showers, 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.