Places › Portland, OR › December

Portland in December

An off month — score 42 of 100

Typical December days in Portland reach about 47°F with nights near 36°F; rain is frequent — about 19 days see some rain, usually in showers.

What to pack for Portland in December

• An insulated coat, plus a hat and gloves for mornings.
• A waterproof shell and shoes you can soak — rain falls on about 19 days in a typical December, so plan an indoor anchor each day.
• Warm, waterproof boots for slush and snow days.

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December vs. the alternatives

The whole year in Portland

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.