Snoqualmie Pass Weather in December

During December, Snoqualmie Pass experiences very low daytime temperatures of 1°C (34°F) and cooler nights around -3°C (27°F). December sits within the rainy season, and part of the winter season, so expect regular and often heavy snow/rainfall.

Rainfall in Snoqualmie Pass in December

Snoqualmie Pass is in the rainy season in December, with rain on around 26 days and an average of 391 mm (15 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Snoqualmie Pass in December

Expect highs of 1°C (34°F) in Snoqualmie Pass in December, with nights dropping to around -3°C (27°F). Winter occurs in December. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. Nights drop below freezing to -3°C (27°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. This month tends to bring the coldest weather of the year, so be sure to pack enough warm clothing to stay comfortable.

Sunshine in Snoqualmie Pass in December

The area experiences limited sunny days, amounting to roughly 54 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Snoqualmie Pass.