December Weather in Bloomington, United States

Last updated: June 24, 2025

In December, the average temperature in Bloomington, United States hovers around 15°C (60°F). Expect a minimum chill of -1°C (31°F) and a warmth that can reach up to 29°C (85°F). During this month, precipitation averages 68 mm (2.7 in) over the course of 7 days, contributing to a pleasant average humidity of 84%.

December Temperature in Bloomington

In December in Bloomington, the average temperature is 15°C (60°F), with maximums potentially reaching 29°C (85°F) and minimums dropping as low as -1°C (31°F). This makes it a great time for travelers to enjoy a mix of mild weather and varying temperatures, so pack accordingly!

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

The chart illustrates December 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, December typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around -1°C (31°F).

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

December Precipitation in Bloomington

In Bloomington in December, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

December Precipitation Trends in Bloomington

The chart displays monthly precipitation patterns in Bloomington, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bloomington, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Bloomington

In Bloomington in December humidity is 84%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration feel stifling and sticky, while creating a heavy air that may slow your pace and dampen your enthusiasm for sightseeing.

December Average Humidity in Bloomington

This chart illustrates the average monthly humidity levels in Bloomington, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bloomington is approximately 84%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Bloomington

In Bloomington in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bloomington.

Maximum UV Index Levels in Bloomington for December

The chart shows the monthly maximum UV Index (UVI) for Bloomington in December, 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 December, the maximum UV index in Bloomington typically reaches 5, which falls under the moderate exposure category.

Data source: Bloomington December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (57°F)	52 mm (2.1 inches)	78%	moderate
February Weather	15°C (59°F)	55 mm (2.2 inches)	81%	very high
March Weather	20°C (67°F)	59 mm (2.3 inches)	76%	very high
April Weather	22°C (72°F)	69 mm (2.7 inches)	79%	extreme
May Weather	26°C (79°F)	118 mm (4.7 inches)	79%	extreme
June Weather	28°C (83°F)	132 mm (5.2 inches)	74%	extreme
July Weather	29°C (85°F)	99 mm (3.9 inches)	71%	extreme
August Weather	30°C (86°F)	94 mm (3.7 inches)	68%	extreme
September Weather	27°C (82°F)	137 mm (5.4 inches)	73%	extreme
October Weather	23°C (74°F)	76 mm (3.0 inches)	75%	very high
November Weather	18°C (64°F)	69 mm (2.7 inches)	78%	high
December Weather	15°C (60°F)	68 mm (2.7 inches)	84%	moderate