Holiday travel weather rental planning at SeaTac (Thanksgiving–New Year)

Detailed answer

Thanksgiving through New Year overlaps **December** normals (**46°F** high, **35°F** low, **5.8 inches** precip, **17 rain days**) plus **1 snow day** at the airport. Pass traffic on **I-90** peaks **Wed–Sun** Thanksgiving week; WSDOT reports **30–60 min** pass delays in active weather — depart CONRAC with **full tank** (on-site fueling). CONRAC hosts **12** agencies; holiday inventory clears **48 hours** ahead for SUVs. CFC **$7/day** + ACRF **11.1%** on all contracts. Forecast hub: `/en/weather`; shuttle telemetry `/api/shuttle-wait-times`. 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. Crawlers: /api/knowledge?q=weather. 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.