Harriman Weather in December

During December, Harriman experiences low daytime temperatures of 11°C (52°F) and cooler nights around 0°C (32°F). As part of the winter season, expect quite a bit of rainfall. Around 159 mm (6.3 in) is typical.

Rainfall in Harriman in December

Looking at the last 30 years, the data shows about 13 days with rain, averaging 159 mm (6.3 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Harriman in December

Temperatures in Harriman in December top out at 11°C (52°F) and drop to 0°C (32°F) overnight. December is in the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights fall to 0°C (32°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Harriman in December

The month brings about 125 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Harriman. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Harriman's climate page.

Harriman Temperature in December

Min Temperature 0°C (32°F)

Max Temperature 11°C (52°F)

Chance of Rain 43%

Precipitation 159 mm (6.3 in)

Rainy days 13 days

Humidity 73% *

Sunshine 125 hours *

Percentage Sunshine 40% *

* Data from: Knoxville, the United States of America (56 KM, 35 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 →

Weather conditions Weather

Temperatures

Precipitation

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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 Harriman in December

Pack for changing conditions in Harriman in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Harriman 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 Harriman's climate page.

More climate data for Harriman

Temperature Rainfall Sunshine Humidity

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