Complete 2015 Long-Range Weather Forecast for the Pacific Northwest Region, November 2014 to October 2015 includes week-by-week details.
Free 2-Month Weather Forecast
APRIL 2015: temperature 48° (2° below avg.); precipitation 3" (avg.); Apr 1-4: Rainy periods, cool; Apr 5-10: Sunny, nice; Apr 11-22: Occasional rain, cool; Apr 23-27: Sunny, warm; Apr 28-30: Showers, cool.
MAY 2015: temperature 57° (2° above avg.); precipitation 1" (1" below avg.); May 1-5: Rainy periods, cool; May 6-9: Sunny, warm; May 10-15: A few showers, cool; May 16-18: Sunny, very warm; May 19-22: Rainy periods, cool; May 23-26: Sunny, turning hot; May 27-31: Showers, then sunny, very warm.
Annual Weather Summary: November 2014 to October 2015
Winter temperatures will be higher than normal, with below-normal snowfall. Precipitation will be below normal in Washington and Oregon and near normal in northern California. The coldest periods will be in late December, mid- to late January, and late February, with the snowiest periods in late December and mid- to late January.
April and May will be slightly drier than normal, with near-normal temperatures.
Summer will be drier than normal, with temperatures near normal in the north and above elsewhere. The hottest periods will occur in mid- and late June and early to mid-July.
September and October will be cooler and drier than normal.