January weather forecast
Bloomington, IL

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Weather in January

In Bloomington, Illinois, the year commences with brisk temperatures and predominant cloud coverage, marking January as a typical winter month. Highs of 30.7°F (-0.7°C) and lows of 18.9°F (-7.3°C) are accompanied by snowy conditions, transforming the city into a winter wonderland. Extended daylight hours are scarce during this month, contributing to the crisp and cold atmosphere. The chilly winds make the air seem significantly colder, urging residents to bundle up. On snow-filled days, the white landscapes provide striking contrasts to the typically grey skies of January.

Temperature

January, characterized by an average high temperature of 30.7°F (-0.7°C) and a low temperature of 18.9°F (-7.3°C), is generally the coldest month.

Humidity

In January, the average relative humidity is 81%.

Rainfall

The month with the least rainfall is January, when the rain falls for 5.6 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Bloomington. The month with the most snowfall in Bloomington is January, when snow falls for 11.5 days and typically aggregates up to 2.44" (62mm) of snow.

Daylight

The average length of the day in January in Bloomington is 9h and 40min.
On the first day of January in Bloomington, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:12 pm CST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bloomington, Illinois. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the UV index of 2 transforms 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. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Bloomington?

Bloomington reaches its average lowest temperatures in January, measuring 30.7°F (-0.7°C) at the peak and 18.9°F (-7.3°C) at the lowest.

How cold is it in Bloomington in January?

In January, in Bloomington, the average high-temperature is 30.7°F (-0.7°C), and the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January in Bloomington?

In January, the average relative humidity in Bloomington, Illinois, is 81%.

What is the driest month in Bloomington?

The month with the least rainfall in Bloomington, Illinois, is January, when the rain falls for 5.6 days and typically collects 1.18" (30mm) of precipitation.

How much does it rain in Bloomington in January?

In Bloomington, in January, during 5.6 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

What is the snowiest month in Bloomington?

January is the month with the most snowfall. Snow falls for 11.5 days and accumulates 2.44" (62mm) of snow.

How much does it snow in Bloomington in January?

In Bloomington, Illinois, in January, during 11.5 snowfall days, 2.44" (62mm) of snow is typically accumulated.

How many hours of daylight does Bloomington have in January?

In Bloomington, Illinois, the average day length in January is 9h and 40min.

When is the sunrise / sunset in January in Bloomington?

On the first day of January in Bloomington, Illinois, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Bloomington?

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

How many hours of sunshine does Bloomington have in January?

In January, the average sunshine duration in Bloomington is 3.6h.

What is the month with the lowest UV index in Bloomington?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bloomington.

What is the UV index reading in January in Bloomington?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Bloomington, IL

Average temperature in January - Bloomington, IL
  • Average high temperature in January: 30.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in January
Bloomington, IL

Average pressure in January - Bloomington, IL
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Bloomington, IL

Average wind speed in January - Bloomington, IL
  • Average wind speed in January: 11.1mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Bloomington, IL

Average humidity in January - Bloomington, IL
  • Average humidity in January: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Bloomington, IL

Average rainfall in January - Bloomington, IL
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in January
Bloomington, IL

Average rainfall days in January - Bloomington, IL
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in January
Bloomington, IL

Average snowfall in January - Bloomington, IL
  • Average snowfall in January: 2.44"

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Bloomington, IL

Average snowfall days in January - Bloomington, IL
  • Average snowfall days in January: 11.5 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in January
Bloomington, IL

Average sunshine days in January - Bloomington, IL
  • Average sunshine days in January: 14.8 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.7 days).

Average UV index in January
Bloomington, IL

Average UV index in January - Bloomington, IL
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Bloomington, IL

Average cloud cover in January - Bloomington, 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 September (Cloud cover 33).

Average visibility in January
Bloomington, IL

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

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Bloomington, Illinois, USA

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