January Weather in Bloomington, United States

Last updated: June 24, 2025

In January, the average temperature in Bloomington, United States hovers around -3°C (27°F). While the mercury can dip as low as -30°C (-21°F), it occasionally peaks at a pleasant 16°C (61°F). Expect a moderate precipitation amount of 65 mm (2.5 in) spread over 8 days, accompanied by an average humidity of 82%. Prepare for a chilly and damp month ahead!

January Temperature in Bloomington

In January in Bloomington, the average temperature is -3°C (27°F). The maximum can reach 16°C (61°F), while the minimum can drop to as low as -30°C (-21°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

January Weather in Bloomington: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bloomington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bloomington, January typically has an average temperature of -3°C (27°F), with highs reaching up to 16°C (61°F) and lows dropping to around -30°C (-21°F).

Data source: Temperature data for Bloomington generated using information from the Copernicus Climate Change Service.

January Precipitation in Bloomington

In Bloomington in January, the precipitation amount is 65 mm (2.5 in) over a span of 8 days.

January Precipitation Trends in Bloomington

The chart displays monthly precipitation patterns in Bloomington, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Bloomington, January typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Bloomington

In Bloomington in January, humidity is 82%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm while navigating through the damp air.

January Average Humidity in Bloomington

This chart illustrates the average monthly humidity levels in Bloomington, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Bloomington is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Bloomington

In Bloomington in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Bloomington, you can check the information here.

Maximum UV Index Levels in Bloomington for January

The chart shows the monthly maximum UV Index (UVI) for Bloomington in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Bloomington typically reaches 3, which falls under the moderate exposure category.

Data source: Bloomington January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Bloomington Compares to Other Months

Weather in Bloomington varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Bloomington, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bloomington, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	65 mm (2.5 inches)	82%	moderate
February Weather	-1°C (30°F)	69 mm (2.7 inches)	83%	moderate
March Weather	5°C (42°F)	113 mm (4.4 inches)	84%	high
April Weather	11°C (51°F)	118 mm (4.6 inches)	85%	very high
May Weather	18°C (64°F)	159 mm (6.3 inches)	79%	very high
June Weather	23°C (74°F)	119 mm (4.7 inches)	82%	extreme
July Weather	25°C (77°F)	105 mm (4.1 inches)	80%	very high
August Weather	23°C (74°F)	94 mm (3.7 inches)	81%	very high
September Weather	21°C (70°F)	62 mm (2.4 inches)	80%	very high
October Weather	13°C (56°F)	125 mm (4.9 inches)	82%	high
November Weather	5°C (41°F)	62 mm (2.4 inches)	88%	moderate
December Weather	1°C (35°F)	55 mm (2.2 inches)	84%	low