December weather forecast
Antioch, IL

Weather in December

The first month of the winter, December, is also a wintry month in Antioch, Illinois, with average temperature ranging between min 22.8°F (-5.1°C) and max 32.5°F (0.3°C).

Temperature

In December, the average high-temperature drops, from a chilly 44.4°F (6.9°C) in November, to a wintry 32.5°F (0.3°C). In Antioch, the average low-temperature is 22.8°F (-5.1°C).

Humidity

In Antioch, the average relative humidity in December is 82%.

Rainfall

The month with the least rainfall in Antioch, Illinois, is December when the rain falls for 6 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

Months with snowfall in Antioch are January through May, October through December. In Antioch, in December, during 7.8 snowfall days, 2.28" (58mm) of snow is typically accumulated. Throughout the year, there are 38.2 snowfall days, and 15.59" (396mm) of snow is accumulated.

Daylight

The month with the shortest days in Antioch is December, with an average of 9.1h of daylight.

Sunshine

In Antioch, Illinois, the average sunshine in December is 3.9h.

UV index

Months with the lowest UV index in Antioch are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Antioch?

In December, the average relative humidity is 82%.

What is the driest month in Antioch?

The month with the least rainfall in Antioch, Illinois, is December when the rain falls for 6 days and typically collects 1.06" (27mm) of precipitation.

How much does it rain in Antioch in December?

In Antioch, Illinois, in December, during 6 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

How much does it snow in Antioch in December?

In December, in Antioch, Illinois, it is snowing for 7.8 days. Throughout December, 2.28" (58mm) of snow is accumulated.

What is the month with the shortest days in Antioch?

December has the shortest days of the year, with an average of 9.1h of daylight.

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

In Antioch, the average length of the day in December is 9.1h.

How long on average sun shines in December in Antioch?

In Antioch, the average sunshine in December is 3.9h.

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

Months with the lowest UV index in Antioch, Illinois, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Antioch?

In December, the average daily maximum UV index in Antioch, Illinois, is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Antioch, IL

Average temperature in December - Antioch, IL
  • Average high temperature in December: 32.5°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in December
Antioch, IL

Average pressure in December - Antioch, IL
  • Average pressure in December: 30.09"

Months with the highest atmospheric pressure are January and February (30.1").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in December
Antioch, IL

Average wind speed in December - Antioch, IL
  • Average wind speed in December: 9.6mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in December
Antioch, IL

Average humidity in December - Antioch, IL
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in December
Antioch, IL

Average rainfall in December - Antioch, IL
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

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Average rainfall days in December
Antioch, IL

Average rainfall days in December - Antioch, IL
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in December
Antioch, IL

Average snowfall in December - Antioch, IL
  • Average snowfall in December: 2.28"

The month with the highest snowfall is January (4.33").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Antioch, IL

Average snowfall days in December - Antioch, IL
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (10.1 days).
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
Antioch, IL

Average daylight in December / Average sunshine in December - Antioch, IL
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 3.9h

Months with the most sunshine are July and August (Average sunshine: 9.9h).
Months with the least sunshine are January and February (Average sunshine: 3.6).

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Average sunshine days in December
Antioch, IL

Average sunshine days in December - Antioch, IL
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in December
Antioch, IL

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

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Antioch, IL

Average cloud cover in December - Antioch, IL
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
Months with the least cloud cover are July, August and September (Cloud cover 32).

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Average visibility in December
Antioch, IL

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

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

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