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2015 Long-Range Weather Forecast for Costa Mesa, California

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(Nov. 2014 - Oct. 2015)

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

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Map showing long-range weather ragion

OCTOBER 2014: temperature 65° (avg.); precipitation 1" (1" above avg. north, avg. south); Oct 1-6: A few showers north, sunny south; cool; Oct 7-13: T-storms north, showers south; then sunny, cool; Oct 14-26: Sunny; cool, then warm; Oct 27-31: Rainy periods, cool.

NOVEMBER 2014: temperature 61° (3° above avg.); precipitation 0.5" (1" below avg.); Nov 1-7: Sunny north, showers south; warm; Nov 8-15: Showers, then sunny, cool; Nov 16-23: Sunny, mild; Nov 24-30: Isolated showers; cool inland, mild coast.

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.

Temperature and Precipitation November 2014 to October 2015

Temperature and Precipitation Graph

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