January weather forecast
Calumet City, IL

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Weather in January

January, like December, is a freezing cold winter month in Calumet City, Illinois, with an average temperature fluctuating between 19.6°F (-6.9°C) and 29.8°F (-1.2°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 29.8°F (-1.2°C) and a low of 19.6°F (-6.9°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 82%.

Rainfall

In Calumet City, Illinois, in January, during 4.6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 110.3 rainfall days, and 10.31" (262mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 1.1" (28mm) of snow.

Daylight

In Calumet City, the average length of the day in January is 9h and 34min.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:03 am and sunset at 5:03 pm CST.

Sunshine

January has the least sunshine of the year in Calumet City, with an average of 3.6h of sunshine.

UV index

The average daily maximum UV index in January in Calumet City is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What is the coldest month in Calumet City?

In Calumet City, the lowest temperatures are generally noted in January, averaging a high of 29.8°F (-1.2°C) and a low of 19.6°F (-6.9°C).

How cold is it in Calumet City in January?

In Calumet City, 29.8°F (-1.2°C) is the average high-temperature and 19.6°F (-6.9°C) is the average low-temperature during January.

What is the most humid month in Calumet City?

January and February, with an average relative humidity of 82%, are most humid months in Calumet City, Illinois.

What is the average humidity in January in Calumet City?

The average relative humidity in January is 82%.

How many days does it rain in January in Calumet City?

In Calumet City, in January, it is raining for 4.6 days, with typically 0.51" (13mm) of accumulated precipitation.

What is the snowiest month in Calumet City?

January is the month with the most snowfall in Calumet City. Snow falls for 9.3 days and accumulates 1.1" (28mm) of snow.

How many days does it snow in January in Calumet City?

In January, in Calumet City, Illinois, it is snowing for 9.3 days. Throughout January, 1.1" (28mm) of snow is accumulated.

What is the average length of the day in January in Calumet City?

In January, the average day length in Calumet City, Illinois, is 9h and 34min.

What time are sunrise and sunset in January in Calumet City?

In January, on the first day of the month, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of the month, in Calumet City, Illinois, sunrise is at 7:03 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Calumet City?

The month with the least sunshine is January, with an average of 3.6h of sunshine.

How many hours of sunshine does Calumet City have in January?

In January, the average sunshine duration is 3.6h.

How high is the UV index in January in Calumet City?

In Calumet City, Illinois, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
35.8°F 2.1°C
29.8°F -1.2°C
32.9°F 0.5°C
Average low temperature
26.8°F -2.9°C
19.6°F -6.9°C
22.5°F -5.3°C
Average pressure
30.09" 764mmHg
30.11" 765mmHg
30.09" 764mmHg
Average wind speed
10.3mph 16.6km/h
11mph 17.7km/h
10.6mph 17.1km/h
Average max. wind speed
10.9mph 17.5km/h
11.6mph 18.7km/h
11.1mph 17.9km/h
Average wind speed gusts
15.6mph 25.1km/h
16.5mph 26.6km/h
16.3mph 26.2km/h
Average humidity
80%
82%
82%
Average rainfall
0.47" 12mm
0.51" 13mm
0.47" 12mm
Average rainfall days
4.2
4.6
4.1
Average snowfall
0.51" 13mm
1.1" 28mm
0.94" 24mm
Average snowfall days
7.5
9.3
8.5
Average daylight
9h 1min
9h 4min
10h 4min
Average sunshine
4h 0min
3h 4min
3h 5min
Average sunshine days
19.8
18.3
17.1
Average UV index
1
2
2
Average cloud cover
59%
62%
59%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Calumet City, IL

Average temperature in January - Calumet City, IL
  • Average high temperature in January: 29.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in January: 19.6°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in January
Calumet City, IL

Average pressure in January - Calumet City, IL
  • Average pressure in January: 30.11"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 January
Calumet City, IL

Average wind speed in January - Calumet City, IL
  • Average wind speed in January: 11mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Calumet City, IL

Average humidity in January - Calumet City, IL
  • Average humidity in January: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Calumet City, IL

Average rainfall in January - Calumet City, IL
  • Average rainfall in January: 0.51"

The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").

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Average rainfall days in January
Calumet City, IL

Average rainfall days in January - Calumet City, IL
  • Average rainfall days in January: 4.6 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in January
Calumet City, IL

Average snowfall in January - Calumet City, IL
  • Average snowfall in January: 1.1"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Calumet City, IL

Average snowfall days in January - Calumet City, IL
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Calumet City, IL

Average daylight in January / Average sunshine in January - Calumet City, IL
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Calumet City, IL

Average sunshine days in January - Calumet City, IL
  • Average sunshine days in January: 18.3 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in January
Calumet City, IL

Average UV index in January - Calumet City, IL
  • Average UV index in January: 2

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

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Average cloud cover in January
Calumet City, IL

Average cloud cover in January - Calumet City, IL
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in January
Calumet City, IL

Average visibility in January - Calumet City, 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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Calumet City, Illinois, USA

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