After snow blanketed the South Sound overnight, the melting process began Sunday morning.
Many locations in Pierce, Thurston and Lewis counties received 4-6 inches of snow Saturday and into early Sunday morning.
Sea-Tac Airport received 2.9 inches, the heaviest snowfall at the airport since Jan. 18, 2012.
The Washington State Patrol responded to more than 200 collisions in Pierce and Thurston counties over night, according to the agency's Twitter account.
Untreated roads were still slippery Sunday as commuters took to the streets.
Northwest Trek Wildlife Park closed Sunday, reporting a 6-inch accumulation of snow at the park.
Due to high avalanche danger, Mount Rainier National Park closed the gate to Paradise at Longmire for the day and required vehicles to carry tire chains.
The National Weather Service is predicting clouds and high temperatures near 42 degrees as the day moves forward, with little or no snow accumulation. Rain is forecast for the next several days, with highs in the 40s.
KIROTV.com contributed to this report