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December Weather Forecast: Seattle
Seattle in December is typically characterized by cool, wet, and cloudy weather. Expect average high temperatures in the mid-40s Fahrenheit (around 7 degrees Celsius) and frequent rainfall, contributing to the city’s reputation for gray skies during this time of year.
Understanding Seattle’s December weather helps you prepare appropriately for travel or daily life in the Emerald City.
Average Temperatures and Rainfall
Seattle’s December weather generally hovers between an average high of 46°F (8°C) and a low of 37°F (3°C). Rainfall is very common, averaging around 6 inches (152 mm) for the month. Snowfall is possible, but not as frequent as rain. The likelihood of significant snowfall impacting the city is relatively low.
Cloud Cover and Daylight Hours
December is Seattle’s cloudiest month, with persistent overcast skies. Daylight hours are also at their shortest, with only about 8 hours of daylight per day. This can contribute to a feeling of extended twilight.
What to Wear in Seattle in December
Given the cool and wet conditions, layering is essential. A waterproof jacket or coat is a must. Consider wearing warm sweaters, long-sleeved shirts, and comfortable pants. Waterproof shoes or boots are also recommended to keep your feet dry. Accessories like gloves, a scarf, and a hat will provide extra warmth.
Potential Weather Hazards
While major weather events are rare, Seattle can experience occasional winter storms in December. These storms can bring heavy rain, wind, and sometimes snow or ice. It’s wise to stay informed about weather forecasts and be prepared for potential disruptions to travel.
You can check Seattle’s Climate on Wikipedia for more information.
Frequently Asked Questions (FAQs)
Is it likely to snow in Seattle in December?
Snow is possible in December, but significant snowfall that accumulates is not very common. Rain is much more frequent.
What is the average rainfall in Seattle in December?
Seattle averages around 6 inches (152 mm) of rainfall in December.
What should I pack for a trip to Seattle in December?
Pack waterproof outerwear, warm layers, waterproof shoes, and accessories like gloves, a scarf, and a hat.
Is December a good time to visit Seattle?
If you don’t mind the rain and shorter days, December can be a cozy time to visit Seattle. The city is often decorated for the holidays and there are plenty of indoor activities to enjoy.
Does Seattle get a lot of sun in December?
No, December is Seattle’s cloudiest month, with very little sunshine.
Summary
December in Seattle is characterized by cool temperatures, frequent rainfall, and persistent cloud cover. While snowfall is possible, it’s not a guarantee. Packing warm, waterproof clothing is essential for staying comfortable during this time of year. Despite the weather, Seattle offers various indoor and holiday-themed activities to enjoy throughout December.
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