does it snow in seattle in december

Does it Snow in Seattle in December?

While Seattle doesn’t experience consistent heavy snowfall, it can definitely snow in December. On average, Seattle sees some measurable snowfall during December, though it’s often light and doesn’t accumulate significantly. However, there can be years with substantial December snowfall, creating a winter wonderland.

Historical Snowfall Data in December

Seattle’s weather is influenced by its location near the Puget Sound and the Cascade Mountains, leading to a relatively mild, maritime climate. This means winters are cool and wet, but not consistently freezing. According to Wikipedia’s page about the climate of Seattle, December is one of the months where snowfall is most likely. However, the amount of snow varies greatly from year to year. Some years might see only a dusting, while others experience several inches.

Factors Influencing Seattle Snowfall

Several factors determine whether Seattle will see snow in December. Cold air masses from the interior of the continent need to push westward and combine with moisture from the Pacific Ocean. The “Puget Sound Convergence Zone,” a weather phenomenon specific to the region, can also enhance precipitation, potentially leading to localized areas of heavier snowfall. Even when temperatures are cold enough, the type of precipitation (rain, snow, or a mix) can depend on the temperature profile of the atmosphere, making snowfall prediction challenging.

Preparing for Potential December Snow

Even if heavy snowfall isn’t guaranteed, it’s wise to be prepared for the possibility of snow in Seattle during December. This includes having appropriate clothing, ensuring your vehicle is equipped for winter driving, and having snow removal tools like shovels and de-icer on hand. Checking weather forecasts regularly and heeding any warnings issued by local authorities are also crucial for staying safe.

FAQs About Seattle Snow in December

Is December the snowiest month in Seattle?

No, December is not necessarily the snowiest month. January tends to have the highest average snowfall, although significant snow can occur in any winter month.

How likely is it to snow in Seattle on Christmas Day?

A “White Christmas” in Seattle is relatively rare. The chances of measurable snowfall on December 25th are statistically lower than other days in December.

Does Seattle shut down when it snows?

Sometimes. Even relatively light snowfall can cause significant disruptions in Seattle due to the hilly terrain and the city’s limited snow removal resources. Schools may close, and transportation can be severely impacted.

What is the average temperature in Seattle in December?

The average high temperature in Seattle in December is around 47°F (8°C), and the average low is around 37°F (3°C).

Where does it snow most often near Seattle?

The Cascade Mountains, located east of Seattle, receive significantly more snow than the city itself. Mountain passes can experience heavy snowfall throughout December.

Summary

Seattle can experience snowfall in December, although it’s not always a certainty or a large amount. The weather is unpredictable, and conditions can change quickly. Being prepared and staying informed about the weather forecast is essential for navigating December in Seattle.