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Snow and Ice

Snowfall is rare in Seattle, but icy conditions can occasionally occur in winter. Newcomers should be aware of how the city manages snow and ice when it does happen.

Sections

1. Seasonal Weather Patterns in Seattle

  • Winter Climate (December to February):

    • Seattle winters are generally wet and cool, with average temperatures ranging from 36°F to 48°F (2°C to 9°C).
    • Snowfall is infrequent but possible, typically occurring between late November and early March. On average, Seattle receives about 5 inches (12.7 cm) of snow per year, though some years see little to no snow, while others experience significant storms.
    • Ice is more common than snow due to freezing overnight temperatures combined with daytime rain or melting snow.
  • Weather Challenges:

    • Seattle’s hilly terrain and lack of widespread snow-clearing infrastructure can make even light snow or ice hazardous.
    • Sudden temperature drops can lead to "black ice," a thin, nearly invisible layer of ice on roads and sidewalks, which is particularly dangerous for drivers and pedestrians.

2. Impacts on Travel and Daily Life

  • Road Conditions:

    • Seattle’s steep hills become treacherous during snow and ice events. Many roads, especially in residential areas, are not plowed or salted regularly.
    • Major highways and arterials are prioritized for snow removal, but secondary streets may remain untreated for days.
    • Chains or snow tires may be required in certain conditions, especially if traveling to higher elevations like Snoqualmie Pass or other mountain areas.
  • Public Transit:

    • King County Metro buses may experience delays or route changes during snow and ice. Some routes are replaced with "snow routes," which avoid steep hills and less-traveled roads.
    • Sound Transit’s Link Light Rail is generally reliable during snow, as it operates on a fixed track system, but access to stations may be impacted by icy sidewalks or roads.
    • The Seattle Streetcar and ferries may also experience delays or disruptions, though ferries are less affected by snow and ice.
  • Air Travel:

    • Seattle-Tacoma International Airport (SEA) is well-equipped to handle snow, but flights may still be delayed or canceled during severe weather. Check with your airline for updates.
  • Daily Life:

    • Schools and businesses may close or operate on reduced hours during significant snow events.
    • Grocery stores can experience a rush of shoppers before storms, leading to shortages of essentials like bread, milk, and eggs.

  • Winterizing Your Vehicle:

    • Snow tires: $600–$1,000 for a full set.
    • Chains: $50–$100 (required in some areas during snowstorms).
    • Windshield de-icer or scraper: $10–$20.
    • Antifreeze: $15–$30.
  • Home Preparation:

    • Space heaters: $50–$150.
    • Insulation for pipes to prevent freezing: $20–$50.
    • Snow shovels or ice melt: $20–$50.
  • Clothing:

    • Waterproof boots: $50–$150.
    • Insulated jackets: $100–$300.
    • Gloves, hats, and scarves: $20–$50 each.

4. Safety Procedures

  • Driving:

    • Avoid driving unless absolutely necessary during snow or ice events. If you must drive:
      • Use snow tires or chains.
      • Drive slowly and leave extra space between vehicles.
      • Avoid steep hills and unplowed roads.
    • Check road conditions on the Washington State Department of Transportation (WSDOT) website or mobile app.
  • Walking:

    • Wear shoes with good traction to prevent slipping on icy sidewalks.
    • Be cautious of "black ice," especially in shaded areas or early in the morning.
    • Use handrails on stairs and walkways when available.
  • At Home:

    • Keep sidewalks and driveways clear of snow and ice to prevent accidents.
    • Use sand or ice melt to improve traction on slippery surfaces.
    • Prepare for potential power outages by having flashlights, batteries, and warm blankets on hand.

5. Navigating Public Transit and Local Sites

  • Public Transit Tips:

    • Check King County Metro’s website or app for real-time updates on bus routes and snow detours.
    • Dress warmly and allow extra time for delays.
    • Be prepared for crowded buses, as more people rely on public transit during snow events.
  • Visiting Local Sites:

    • Many of Seattle’s popular attractions, such as Pike Place Market, the Space Needle, and the Seattle Aquarium, remain open during winter but may have reduced hours or limited access during snowstorms.
    • Outdoor attractions like Discovery Park or Kerry Park may be difficult to access due to icy trails or roads.
    • If visiting Mount Rainier or other nearby mountains, check road conditions and carry chains, as they are often required.

6. Additional Tips for Adapting to Snow and Ice in Seattle

  • Stay Informed:

    • Monitor local weather forecasts through apps like AccuWeather or the National Weather Service (NWS).
    • Follow the City of Seattle’s Department of Transportation (SDOT) for updates on road conditions and snow removal efforts.
  • Be Patient:

    • Seattleites are not accustomed to heavy snow, and the city’s infrastructure is not designed for frequent winter storms. Expect delays and disruptions, and plan accordingly.
  • Stock Up Early:

    • Before a snowstorm, stock up on groceries, medications, and other essentials to avoid last-minute shopping trips.
  • Embrace the Experience:

    • Snow in Seattle is relatively rare, so when it does happen, many locals take the opportunity to enjoy it. Consider visiting a nearby park for sledding or building a snowman in your yard.

7. Long-Term Considerations

If you’re planning to move to Seattle or stay for an extended period, it’s worth investing in winter gear and learning how to navigate the city during snow and ice events. While these conditions are not frequent, being prepared will help you adapt quickly and stay safe.

By understanding Seattle’s unique challenges with snow and ice, you’ll be better equipped to handle winter weather and enjoy all that the city has to offer, even during its colder months.