January weather forecast
Holiday Hills, IL

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Weather in January

January, the same as December, in Holiday Hills, Illinois, is another subzero cold winter month, with an average temperature varying between 14.9°F (-9.5°C) and 26.6°F (-3°C).

Temperature

January, known for its average high temperature of 26.6°F (-3°C) and an average low temperature of 14.9°F (-9.5°C), is the coldest month.

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 85%.

Rainfall

In January, the rain falls for 5.6 days. Throughout January, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Holiday Hills, Illinois, there are 152.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 5.16" (131mm) of snow.

Daylight

In January, the average length of the day in Holiday Hills is 9h and 31min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of January, in Holiday Hills, sunrise is at 7:07 am and sunset at 5:05 pm CST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year in Holiday Hills.

UV index

The months with the lowest UV index in Holiday Hills, Illinois, 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 unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in January interprets into the following advice:
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. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the coldest time of year in Holiday Hills?

January, with average temperatures reaching a high of 26.6°F (-3°C) and a low of 14.9°F (-9.5°C), is the coldest month in Holiday Hills, Illinois.

How cold is it in Holiday Hills in January?

The high-temperature, in January, in Holiday Hills, is 26.6°F (-3°C), while the low-temperature averages to 14.9°F (-9.5°C).

What are the most humid months in Holiday Hills?

The months with the highest humidity in Holiday Hills are January and February, with an average relative humidity of 85%.

What is the average humidity in January in Holiday Hills?

In Holiday Hills, the average relative humidity in January is 85%.

How much does it rain in Holiday Hills in January?

In January, the rain falls for 5.6 days. Throughout January, 1.54" (39mm) of precipitation is accumulated.

When does it snow the most in Holiday Hills?

January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 5.16" (131mm) of snow.

How much does it snow in Holiday Hills in January?

In Holiday Hills, in January, snow falls for 13.3 days, with typically accumulated 5.16" (131mm) of snow.

How many hours of daylight does Holiday Hills have in January?

In January, the average day length is 9h and 31min.

When are sunrise and sunset in January in Holiday Hills?

On the first day of January, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:05 pm CST.

What is the month with the least sunshine in Holiday Hills?

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

How many hours of sunshine does Holiday Hills have in January?

In Holiday Hills, the average sunshine duration in January is 3.7h.

What are the months with the lowest UV index in Holiday Hills?

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

How high is the UV index in January in Holiday Hills?

In January, the average daily maximum UV index in Holiday Hills is 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
32.7°F 0.4°C
26.6°F -3°C
30.2°F -1°C
Average low temperature
22.8°F -5.1°C
14.9°F -9.5°C
18°F -7.8°C
Average pressure
30.09" 764mmHg
30.11" 765mmHg
30.1" 765mmHg
Average wind speed
9.3mph 15km/h
10mph 16.1km/h
9.9mph 15.9km/h
Average max. wind speed
10mph 16.1km/h
10.6mph 17.1km/h
10.6mph 17.1km/h
Average wind speed gusts
14.7mph 23.7km/h
15.7mph 25.3km/h
15.7mph 25.3km/h
Average humidity
82%
85%
85%
Average rainfall
1.34" 34mm
1.54" 39mm
1.46" 37mm
Average rainfall days
7.9
5.6
4.9
Average snowfall
2.6" 66mm
5.16" 131mm
3.5" 89mm
Average snowfall days
10.3
13.3
11.3
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 0min
3h 4min
3h 5min
Average sunshine days
15.9
13.7
12.1
Average UV index
1
1
2
Average cloud cover
60%
62%
59%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Holiday Hills, IL

Average temperature in January - Holiday Hills, IL
  • Average high temperature in January: 26.6°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°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
Holiday Hills, IL

Average pressure in January - Holiday Hills, 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
Holiday Hills, IL

Average wind speed in January - Holiday Hills, IL
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in January
Holiday Hills, IL

Average humidity in January - Holiday Hills, IL
  • Average humidity in January: 85%

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

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Average rainfall in January
Holiday Hills, IL

Average rainfall in January - Holiday Hills, IL
  • Average rainfall in January: 1.54"

The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").

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Average rainfall days in January
Holiday Hills, IL

Average rainfall days in January - Holiday Hills, IL
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in January
Holiday Hills, IL

Average snowfall in January - Holiday Hills, IL
  • Average snowfall in January: 5.16"

The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Holiday Hills, IL

Average snowfall days in January - Holiday Hills, IL
  • Average snowfall days in January: 13.3 days

The month with the highest number of snowfall days is January (13.3 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
Holiday Hills, IL

Average daylight in January / Average sunshine in January - Holiday Hills, 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: 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
Holiday Hills, IL

Average sunshine days in January - Holiday Hills, IL
  • Average sunshine days in January: 13.7 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).

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Average UV index in January
Holiday Hills, IL

Average UV index in January - Holiday Hills, IL
  • Average UV index in January: 1

The month with the highest UV index is 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 January
Holiday Hills, IL

Average cloud cover in January - Holiday Hills, IL
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in January
Holiday Hills, IL

Average visibility in January - Holiday Hills, IL
  • Average visibility in January: 5mi

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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Holiday Hills, Illinois, USA

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