Washington State experiences a significant shift in climate during the eleventh month of the year. Characteristically, this period marks the transition from autumn to winter, bringing cooler temperatures, increased precipitation, and reduced daylight hours. Coastal regions typically experience milder temperatures and higher rainfall than inland areas, which can see colder temperatures and a mix of rain and snow. The Cascade Mountains often receive significant snowfall during this period, impacting mountain passes and travel.
Understanding typical climatic conditions during this time of year is essential for residents and visitors alike. Preparation for inclement weather is crucial for safe travel, outdoor activities, and general well-being. Historical weather data provides valuable insights for predicting seasonal trends and informing infrastructure planning and resource management. This period also influences agricultural practices and seasonal events across the state.