January weather forecast
Tinley Park, IL

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Weather in January

Tinley Park embraces wintry weather in January creating a chilly atmosphere that can only be comforted by a snug blanket and a warm cup of coffee. The city nestles below a cloudy cover most of the time, with the windowpanes often being kissed by the frost in the morning. It is not uncommon to witness snowfall, giving the city its winter charm. Brisk winds sweep the streets, hinting at the city's transition into the deeper winter from the preceding month. Capricious weather conditions prevail with temperatures spanning between a high of 29.7°F (-1.3°C) and plummeting to the low of 18.7°F (-7.4°C).

Temperature

January is the coldest month in Tinley Park, Illinois, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 18.7°F (-7.4°C).

Humidity

In January, the average relative humidity is 82%.

Rainfall

The months with the least rainfall in Tinley Park are January, February and December Rain falls for 4.5 days and accumulates 0.55" (14mm) of rain.

Snowfall

Months with snowfall in Tinley Park, Illinois, are January through April, October through December. January is the month with the most snowfall in Tinley Park. Snow falls for 10.3 days and accumulates 1.3" (33mm) of snow.

Daylight

The average length of the day in January is 9h and 35min.
On the first day of January, sunrise is at 7:17 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:05 pm CST.

Sunshine

January has the least sunshine of the year in Tinley Park, with an average of 3.7h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What month is the coldest in Tinley Park?

In Tinley Park, the average lowest temperatures are observed in January, with a high of 29.7°F (-1.3°C) and a low of 18.7°F (-7.4°C).

How cold is it in Tinley Park in January?

In January, the average high-temperature and low-temperature in Tinley Park are 29.7°F (-1.3°C) and 18.7°F (-7.4°C) respectively.

What is the average humidity in January in Tinley Park?

The average relative humidity in January in Tinley Park is 82%.

What is the driest month in Tinley Park?

The months with the least rainfall in Tinley Park are January, February and December Rain falls for 4.5 days and accumulates 0.55" (14mm) of rain.

How much does it rain in Tinley Park in January?

In Tinley Park, Illinois, in January, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation.

When does it snow the most in Tinley Park?

The month with the most snowfall is January, when snow falls for 10.3 days and typically aggregates up to 1.3" (33mm) of snow.

How much does it snow in Tinley Park in January?

In January, in Tinley Park, it is snowing for 10.3 days. Throughout January, 1.3" (33mm) of snow is accumulated.

What is the average length of the day in January in Tinley Park?

The average day length in January in Tinley Park is 9h and 35min.

What time are sunrise and sunset in January in Tinley Park?

On the first day of January in Tinley Park, sunrise is at 7:17 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:05 pm CST.

What is the month with the least sunshine in Tinley Park?

The month with the least sunshine is January, with an average of 3.7h of sunshine.

How long on average sun shines in January in Tinley Park?

In January, the average sunshine duration is 3.7h.

What is the month with the lowest UV index in Tinley Park?

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

What is the UV index intensity in January in Tinley Park?

The average daily maximum UV index in January in Tinley Park is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
35.4°F 1.9°C
29.7°F -1.3°C
33.1°F 0.6°C
Average low temperature
25.7°F -3.5°C
18.7°F -7.4°C
21°F -6.1°C
Average pressure
30.1" 765mmHg
30.11" 765mmHg
30.1" 765mmHg
Average wind speed
9.4mph 15.1km/h
10.1mph 16.3km/h
9.8mph 15.8km/h
Average max. wind speed
10.1mph 16.3km/h
10.7mph 17.2km/h
10.4mph 16.7km/h
Average wind speed gusts
14.2mph 22.9km/h
15.1mph 24.3km/h
15mph 24.1km/h
Average humidity
81%
82%
83%
Average rainfall
0.55" 14mm
0.55" 14mm
0.55" 14mm
Average rainfall days
4.8
4.5
4.1
Average snowfall
0.47" 12mm
1.3" 33mm
1.26" 32mm
Average snowfall days
6.6
10.3
8.7
Average daylight
9h 1min
9h 4min
10h 4min
Average sunshine
4h 1min
3h 4min
3h 5min
Average sunshine days
20.6
19
17.2
Average UV index
1
1
2
Average cloud cover
58%
61%
59%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Tinley Park, IL

Average temperature in January - Tinley Park, IL
  • Average high temperature in January: 29.7°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 (29.7°F).

  • Average low temperature in January: 18.7°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in January
Tinley Park, IL

Average pressure in January - Tinley Park, 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
Tinley Park, IL

Average wind speed in January - Tinley Park, IL
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in January
Tinley Park, IL

Average humidity in January - Tinley Park, IL
  • Average humidity in January: 82%

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

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Average rainfall in January
Tinley Park, IL

Average rainfall in January - Tinley Park, IL
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").

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Average rainfall days in January
Tinley Park, IL

Average rainfall days in January - Tinley Park, IL
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in January
Tinley Park, IL

Average snowfall in January - Tinley Park, IL
  • Average snowfall in January: 1.3"

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Tinley Park, IL

Average snowfall days in January - Tinley Park, IL
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 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
Tinley Park, IL

Average daylight in January / Average sunshine in January - Tinley Park, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Tinley Park, IL

Average sunshine days in January - Tinley Park, IL
  • Average sunshine days in January: 19 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in January
Tinley Park, IL

Average UV index in January - Tinley Park, IL
  • Average UV index in January: 1

The months with the highest UV index are June and July (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 January
Tinley Park, IL

Average cloud cover in January - Tinley Park, IL
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in January
Tinley Park, IL

Average visibility in January - Tinley Park, 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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Tinley Park, Illinois, USA

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