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Romeoville Weather in December

Romeoville in December sees low daytime temperatures of 3°C (37°F) and nighttime lows of -5°C (23°F). Rainfall is fairly high this month at around 79 mm (3.1 in), so pack a rain jacket to stay dry.

Rainfall in Romeoville in December

Climate statistics over the past 30 years suggest around 12 days of snow/rain, with 79 mm (3.1 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Romeoville in December

Daytime highs in Romeoville in December reach 3°C (37°F), with nights around -5°C (23°F). During December, the winter season is in full swing. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. At -5°C (23°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. You will probably experience very cold weather in this month, so dressing warmly is vital. Be sure to prepare for the chill with the right clothing.

Sunshine in Romeoville in December

You can expect a moderate amount of sunlight, with approximately 107 hours. This means a pleasant mix of sun and overcast.

December in Romeoville 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 Romeoville's climate page.

Romeoville Temperature in December

Min TemperatureMin Temperature -5°C (23°F)  
Max TemperatureMax Temperature 3°C (37°F)  
Chance of RainChance of Rain 41%  
PrecipitationPrecipitation 79 mm (3.1 in)  
Rainy daysRainy days 12 days  
HumidityHumidity 76% *  
SunshineSunshine 107 hours *  
Percentage SunshinePercentage Sunshine 37% *  
* Data from: Chicago, the United States of America (40 KM, 25 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 Romeoville in December

Dress warmly and in layers for your trip to Romeoville in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Romeoville in December

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

Swimming
5/10
Cycling
3/10
Walking
3/10
Camping
1/10
Outdoor sports
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 Romeoville's climate page.

More climate data for Romeoville