Complete 2015 Long-Range Weather Forecast for the Pacific Southwest Region, November 2014 to October 2015 includes week-by-week details.
Free 2-Month Weather Forecast
DECEMBER 2014: temperature 55° (3° above avg. north, 0.5° below south); precipitation 2" (1" above avg. north, 1" below south); Dec 1-9: Rain, then sunny; mild north, cool south; Dec 10-12: Rainy north, sunny south; mild; Dec 13-19: Rainy periods, mild; Dec 20-31: Sunny, cool.
JANUARY 2015: temperature 56° (4° above avg. north, avg. south); precipitation 4" (3" above avg. north, 1.5" below south); Jan 1-4: Rainy; mild north, cool south; Jan 5-6: Showers, mild; Jan 7-9: Rain, heavy north; mild; Jan 10-11: Sunny; Jan 12-17: Rainy, mild north; sprinkles, seasonable south; Jan 18-24: Showers north, sunny south; seasonable; Jan 25-31: Sunny; mild north, cool south.
Annual Weather Summary: November 2014 to October 2015
Winter will be warmer than normal, with the coldest periods in late December and early to mid- and late February. Rainfall will be above normal in the north and below in the south. Mountain snows will be below normal, with the snowiest periods in early to mid-January and mid- to late February.
April and May will be drier than normal, with temperatures near normal in the north and below in the south.
Summer will be cooler than normal, with near-normal rainfall. The hottest periods will be in mid- and late June in the central valley; in mid- to late June, early August, and mid-September near the northern coast; and in late June, early August, and mid- to late September near the southern coast.
September and October will bring near-normal temperatures, with rainfall above normal in the north and below in the south.