Oak Brook
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Oak Brook Weather in December

December in Oak Brook brings low temperatures, with highs of 3°C (37°F) and nights dropping to -5°C (23°F). Rainfall is on the higher side this month, averaging around 80 mm (3.1 in), so keep a rain jacket handy.

Rainfall in Oak Brook in December

Historically, approximately 16 days this month are expected to have snow/rain, averaging 80 mm (3.1 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Oak Brook in December

In December, Oak Brook gets low temperatures, with highs of 3°C (37°F). Nights cool to around -5°C (23°F). December is part of winter. Staying warm is the main priority this month, especially during mornings and evenings. With overnight lows of -5°C (23°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. The month is chilly, so ensure you're equipped and dress warmly. Preparation becomes key in these temperatures.

Sunshine in Oak Brook in December

The area experiences a moderate amount of sunshine, with approximately 107 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Oak Brook in December

Wind speeds average 5 m/s (10 knots) during December. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

December in Oak Brook 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.

Oak Brook Temperature in December

Min Temperature
-5°C (23°F)
Max Temperature
3°C (37°F)
Chance of Rain
52%
Precipitation
80 mm (3.1 in)
Rainy days
16 days
Humidity
76% *
Windspeed
5 m/s (10 knots) *
Sunshine
107 hours *
Percentage Sunshine
37% *
* Data from: Chicago, the United States of America (16 KM, 10 Miles).

Oak Brook Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Oak Brook - 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 Oak Brook in December

Dress warmly and in layers for your trip to Oak Brook 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Oak Brook 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

Oak Brook 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.