January weather forecast
Antioch, IL

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Weather in January

The beginning of the year in Antioch, Illinois, sees the city embrace a typical winter's chill. A stark contrast from the warmth of the holiday season, January carries the mantle of being one of the coldest months. With temperatures dipping as low as 14.9°F (-9.5°C) and only slightly warming up to an average high of 26.2°F (-3.2°C), it is clear that winter is in full swing. Residents and tourists alike get a chance to enjoy winter sports, snowfall, and the spectacular view of a winter wonderland. The month also witnesses the lowest daylight hours of the year at 9.5 hours, underlining the long, dark nights of winter.

Temperature

January, with average temperatures reaching a high of 26.2°F (-3.2°C) and a low of 14.9°F (-9.5°C), is the coldest month in Antioch.

Humidity

January is the most humid month in Antioch, with an average relative humidity of 85%.

Rainfall

In Antioch, in January, it is raining for 4.1 days, with typically 1.26" (32mm) of accumulated precipitation. In Antioch, during the entire year, the rain falls for 139.6 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.33" (110mm) of snow.

Daylight

The average length of the day in January in Antioch is 9h and 29min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:04 pm CST.

Sunshine

The months with the least sunshine are January and February, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index in Antioch are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 1 in January translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are the coldest months in Antioch?

The coldest period tends to be January, when average temperatures fluctuate between a high of 26.2°F (-3.2°C) and a low of 14.9°F (-9.5°C).

How cold is January in Antioch?

In January, the average high-temperature and low-temperature in Antioch, Illinois, are 26.2°F (-3.2°C) and 14.9°F (-9.5°C) respectively.

What is the most humid month in Antioch?

January is the most humid month, with an average relative humidity of 85%.

What is the average humidity in January in Antioch?

The average relative humidity in January is 85%.

How many days does it rain in January in Antioch?

In Antioch, Illinois, during January, the rain falls for 4.1 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the snowiest month in Antioch?

The month with the most snowfall in Antioch, Illinois, is January, when snow falls for 10.1 days and typically aggregates up to 4.33" (110mm) of snow.

How many days does it snow in January in Antioch?

In January, it is snowing for 10.1 days. Throughout January, 4.33" (110mm) of snow is accumulated.

How many hours of daylight does Antioch have in January?

In Antioch, Illinois, the average day length in January is 9h and 29min.

When are sunrise and sunset in January in Antioch?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of the month, in Antioch, Illinois, sunrise is at 7:07 am and sunset at 5:04 pm CST.

What is the month with the least sunshine in Antioch?

January and February, with an average of 3.6h of sunshine, are months with the least sunshine.

How many hours of sunshine does Antioch have in January?

In January, the average sunshine duration is 3.6h.

When is the lowest UV index in Antioch?

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

How high is the UV index in January in Antioch?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
32.5°F 0.3°C
26.2°F -3.2°C
29.7°F -1.3°C
Average low temperature
22.8°F -5.1°C
14.9°F -9.5°C
17.4°F -8.1°C
Average pressure
30.09" 764mmHg
30.1" 765mmHg
30.1" 765mmHg
Average wind speed
9.6mph 15.4km/h
10.3mph 16.6km/h
10.3mph 16.6km/h
Average max. wind speed
10.3mph 16.6km/h
10.9mph 17.5km/h
10.9mph 17.5km/h
Average wind speed gusts
15.1mph 24.3km/h
16.2mph 26.1km/h
16.2mph 26.1km/h
Average humidity
82%
85%
84%
Average rainfall
1.06" 27mm
1.26" 32mm
1.26" 32mm
Average rainfall days
6
4.1
3.4
Average snowfall
2.28" 58mm
4.33" 110mm
3.78" 96mm
Average snowfall days
7.8
10.1
8.5
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
3h 5min
3h 4min
3h 4min
Average sunshine days
18.6
17.6
15.4
Average UV index
1
1
2
Average cloud cover
60%
63%
60%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Antioch, IL

Average temperature in January - Antioch, IL
  • Average high temperature in January: 26.2°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 January: 14.9°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 January
Antioch, IL

Average pressure in January - Antioch, IL
  • Average pressure in January: 30.1"Hg

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

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Average wind speed in January
Antioch, IL

Average wind speed in January - Antioch, IL
  • Average wind speed in January: 10.3mph

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 January
Antioch, IL

Average humidity in January - Antioch, IL
  • Average humidity in January: 85%

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 January
Antioch, IL

Average rainfall in January - Antioch, IL
  • Average rainfall in January: 1.26"

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 January
Antioch, IL

Average rainfall days in January - Antioch, IL
  • Average rainfall days in January: 4.1 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 January
Antioch, IL

Average snowfall in January - Antioch, IL
  • Average snowfall in January: 4.33"

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

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Average snowfall days in January
Antioch, IL

Average snowfall days in January - Antioch, IL
  • Average snowfall days in January: 10.1 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Antioch, IL

Average daylight in January / Average sunshine in January - Antioch, IL
  • Average daylight in January: 9h and 3min

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 6min).

  • Average sunshine in January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

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Average sunshine days in January
Antioch, IL

Average sunshine days in January - Antioch, IL
  • Average sunshine days in January: 17.6 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 January
Antioch, IL

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

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

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Average cloud cover in January
Antioch, IL

Average cloud cover in January - Antioch, IL
  • Average cloud cover in January: 63

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

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Average visibility in January
Antioch, IL

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

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

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Antioch, Illinois, USA

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