Clackamas
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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.

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).

Clackamas Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Clackamas - and find the best time to visit.

Best Places in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Clackamas 3-Day Forecast

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.