December weather forecast
Schaumburg, IL

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Weather in December

In December, winter takes center stage, with the high temperature dropping to 34°F (1.1°C), hard on the heels of November. December welcomes the sight of snow, with an average of 2.52" (64mm) of snowfall. The incoming holiday season makes the cold bearable as the city is bedecked in festive lights and decorations. The chill in the air is complemented by the spirit of warmth and camaraderie among the Schaumburg residents. Despite shorter days and colder weather, there are numerous inspiring sights to behold in Schaumburg during this festive month.

Temperature

During the transition into December, Schaumburg observes a decrease in the average high-temperature, falling from a chilly 45.5°F (7.5°C) in November to a wintry 34°F (1.1°C). Throughout December, the average low-temperature in Schaumburg, Illinois, records at a freezing cold 23.9°F (-4.5°C).

Humidity

In December, the average relative humidity in Schaumburg is 81%.

Rainfall

December is the month with the least rainfall in Schaumburg. Rain falls for 7.9 days and accumulates 1.14" (29mm) of precipitation.

Snowfall

Months with snowfall in Schaumburg are January through May, October through December. In Schaumburg, in December, snow falls for 11.1 days, with typically accumulated 2.52" (64mm) of snow. In Schaumburg, during the entire year, snow falls for 48.9 days and aggregates up to 15.47" (393mm) of snow.

Daylight

December has the shortest days of the year in Schaumburg, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:21 pm. On the last day of December, in Schaumburg, sunrise is at 7:20 am and sunset at 4:30 pm CST.

Sunshine

In Schaumburg, the average sunshine in December is 4h.

UV index

The months with the lowest UV index in Schaumburg are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in Schaumburg?

December temperatures vary between a high-temperature of 34°F (1.1°C) and a low-temperature of 23.9°F (-4.5°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December in Schaumburg?

In December, the average relative humidity is 81%.

What is the driest month in Schaumburg?

December is the month with the least rainfall. Rain falls for 7.9 days and accumulates 1.14" (29mm) of precipitation.

How much does it rain in Schaumburg in December?

In Schaumburg, during December, the rain falls for 7.9 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How many days does it snow in December in Schaumburg?

In Schaumburg, Illinois, during December, snow falls for 11.1 days and regularly aggregates up to 2.52" (64mm) of snow.

What is the month with the shortest days in Schaumburg?

December has the shortest days of the year in Schaumburg, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Schaumburg?

In Schaumburg, the average day length in December is 9h and 11min.

When are sunrise and sunset in December in Schaumburg?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:30 pm CST.

How many hours of sunshine does Schaumburg have in December?

In December, the average sunshine duration in Schaumburg is 4h.

What are the months with the lowest UV index in Schaumburg?

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Schaumburg?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Schaumburg, IL

Average temperature in December - Schaumburg, IL
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in December
Schaumburg, IL

Average pressure in December - Schaumburg, IL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Schaumburg, IL

Average wind speed in December - Schaumburg, IL
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in December
Schaumburg, IL

Average humidity in December - Schaumburg, IL
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in December
Schaumburg, IL

Average rainfall in December - Schaumburg, IL
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").

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Average rainfall days in December
Schaumburg, IL

Average rainfall days in December - Schaumburg, IL
  • Average rainfall days in December: 7.9 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in December
Schaumburg, IL

Average snowfall in December - Schaumburg, IL
  • Average snowfall in December: 2.52"

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Schaumburg, IL

Average snowfall days in December - Schaumburg, IL
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Schaumburg, IL

Average daylight in December / Average sunshine in December - Schaumburg, IL
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in December
Schaumburg, IL

Average sunshine days in December - Schaumburg, IL
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in December
Schaumburg, IL

Average UV index in December - Schaumburg, IL
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Schaumburg, IL

Average cloud cover in December - Schaumburg, IL
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 33).

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Average visibility in December
Schaumburg, IL

Average visibility in December - Schaumburg, IL
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Schaumburg, Illinois, USA

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