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December 2017 Weather and Climate Summary Forecast

December 5, 2017 | Weather & Climate Forecasts | 0 comments

Gregory V. Jones, Linfield College - December 5, 2017

Summary:

  • November was relatively cool and wet from central California throughout most of the PNW, while warm and very dry from southern California across into the Great Basin and Rockies.
  • A persistent ridge over the eastern Pacific and western US will keep things clear, dry and seasonal to warmer than average in the west for at least the next 2 weeks. Early winter snowpacks will melt away while fog and frost will be prevalent in the valleys. While the west is dry, the east is likely to be cold and wet.
  • The seasonal forecast from December through February continues to tilt the odds to winter being cool/wet in the PNW and cool to average and dry in California. If the ridging pattern continues in the eastern Pacific, then the likelihood of an even drier southern half of California and desert SW will increase.

View the report (PDF) >>

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