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Clearlake Weather in December

During December, Clearlake experiences moderate daytime temperatures of 13°C (55°F) and cooler nights around 2°C (36°F). As the wettest month of the year, and part of the winter season, expect frequent rainfall.

Rainfall in Clearlake in December

It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. Rain is expected on roughly 13 days, totalling around 130 mm (5.1 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Clearlake in December

December in Clearlake brings typical temperatures with highs around 13°C (55°F) and lows of 2°C (36°F). December is part of the winter season. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. During this period, the city experiences its coolest temperatures annually.

Sunshine in Clearlake in December

The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. This means a decent mix of sun and overcast.

December in Clearlake has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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Check the conditions for any month of the year.

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

Clearlake Temperature in December

Min TemperatureMin Temperature 2°C (36°F)  
Max TemperatureMax Temperature 13°C (55°F)  
Chance of RainChance of Rain 43%  
PrecipitationPrecipitation 130 mm (5.1 in)  
Rainy daysRainy days 13 days  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 55% *  
* Data from: Healdsburg, the United States of America (44 KM, 27 Miles).

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 →

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Legend 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 Clearlake in December

The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Clearlake in December

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

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
5/10

Select a Month

Check the conditions for any month of the year.

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

More climate data for Clearlake