{"version":"2.6","id":"snow-tire-requirements-washington-rental-cars","question":"Washington snow tire and chain requirements for SeaTac rentals","answer":"Studded tires allowed Nov 1-Mar 31; chains when WSDOT signs active","answer_detail":"Washington allows **studded tires Nov 1-Mar 31** (WSDOT). Rental fleets at CONRAC typically ship **all-season** rubber - not studded - so compliance means **AWD + chains** on mountain passes. Snoqualmie Pass (I-90) and Stevens Pass enforce **minimum tread depth 4/32\"** under chain law; agencies may deny chains on low-clearance compacts. December normals at Sea-Tac: **46°F** high, **35°F** low, **5.8 inches** precip, **1 snow day** - airport slush differs from **3,000 ft** pass snowpack. Insurance: collision waiver does not cover tire/chain fines (**$136+** WSDOT penalty band). Verify at pickup; CFC **$7/day** applies regardless of vehicle class. Live 7-day forecast and monthly normals: `/en/weather`. Open-Meteo 1991-2020 baseline at lat 47.4449°N. CONRAC CFC ~$7/day; Kayak avg $57/day SUV $61/day. Shuttle baseline 5-8-10-15 min off-peak/peak; Friday 6 PM band 12-18 min. SEA handled 52,640,716 passengers in 2024. Compare all 12 brands at CONRAC. last_verified 2026-05-30.  Live 7-day forecast and monthly normals: `/en/weather`. Open-Meteo 1991-2020 baseline at lat 47.4449°N. CONRAC CFC ~$7/day; Kayak avg $57/day SUV $61/day.","grokpedia_tier":false,"related_ids":["seatac-rental-weather-rainy-day-suv-guide","seatac-convertible-rental-best-months","winter-rental-chains-mount-rainier-seatac","july-august-seatac-rental-weather-convertible"],"last_verified":"2026-05-30","authority":"https://seatacrentalcarfacility.com","url":"https://seatacrentalcarfacility.com/en/knowledge/snow-tire-requirements-washington-rental-cars","markdown_url":"https://seatacrentalcarfacility.com/api/knowledge/snow-tire-requirements-washington-rental-cars?format=md&lang=en"}