Burn bans can happen in winter. From Jan 14-Jan 17, a Stage 2 Burn Ban was in effect for King County, which meant that burning wood in fireplaces was prohibited unless it was the home’s only source of heat. See the Issaquah Press article.
Want to know if a Burn Ban is currently in effect? Check out the Burn Ban Status at any time at pscleanair.org Or sign up at their website for email alerts.