Clackamas Weather in December

December in Clackamas averages 8°C (46°F) during the day and 2°C (36°F) at night. It is the wettest month of the year, with 194 mm (7.6 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Clackamas in December

The heaviest rainfall of the year happens this month, with frequent showers. A poncho is your best bet to stay dry. Based on our climate data of the past 30 years, about 20 days of rain are anticipated, with 194 mm (7.6 in) on average. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Clackamas in December

December in Clackamas brings typical temperatures with highs around 8°C (46°F) and lows of 2°C (36°F). Experience the winter season in December. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights fall to 2°C (36°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. This month is known for being the coldest, so make sure you pack appropriately with plenty of warm clothing.

Sunshine in Clackamas in December

The city usually sees around 64 hours of sunlight, indicating fewer sunny days.

Wind Speed in Clackamas in December

Average wind speeds reach 3 m/s (6 knots) in December, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

December in Clackamas has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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• January
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For a detailed overview over the year and the best time to visit the United States of America, check out our Clackamas's climate page.

Clackamas Temperature in December

Min Temperature 2°C (36°F)  

Max Temperature 8°C (46°F)  

Chance of Rain 68%  

Precipitation 194 mm (7.6 in)  

Rainy days 20 days  

Humidity 83% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 64 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (21 KM, 13 Miles).

What to Wear in Clackamas in December

We recommend to layer up for chilly conditions in Clackamas in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Also bring a poncho, it will rain a lot! Waterproof everything you can. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Clackamas in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Clackamas's climate page.

More climate data for Clackamas

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Clackamas climate overview or explore weather in the United States of America.