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Ukiah Weather in December

In Ukiah, December brings moderate daytime temperatures around 13°C (55°F), with nights cooling to 2°C (36°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Ukiah in December

Prepare for the heaviest rain of the year this month, which often comes in heavy showers. A poncho is a smart choice to stay dry. Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 180 mm (7.1 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Ukiah in December

December in Ukiah brings typical temperatures with highs around 13°C (55°F) and lows of 2°C (36°F). December is in the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. The temperatures in December are often the mildest compared to the rest of the year.

Sunshine in Ukiah 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.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Ukiah. Our weather planner can help you explore destinations with more pleasant weather conditions.

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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 Ukiah's climate page.

Ukiah Temperature in December

Min TemperatureMin Temperature 2°C (36°F)  
Max TemperatureMax Temperature 13°C (55°F)  
Chance of RainChance of Rain 48%  
PrecipitationPrecipitation 180 mm (7.1 in)  
Rainy daysRainy days 15 days  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 55% *  
* Data from: Healdsburg, the United States of America (66 KM, 41 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 Ukiah in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Ukiah 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

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 Ukiah's climate page.

More climate data for Ukiah