February Weather in Joliet, United States

Last updated: June 24, 2025

In February, the average temperature in Joliet, United States hovers around -7°C (20°F). While you might experience a chilly minimum of -32°C (-25°F), there's also the occasional warmer day with a maximum of 16°C (61°F). Expect 46 mm (1.8 in) of precipitation spread across 12 days, with an average humidity level of 85%, adding to the atmosphere.

February Temperature in Joliet

In February in Joliet, the average temperature is -7°C (20°F). Maximum temperatures can reach 16°C (61°F), while minimums can dip as low as -32°C (-25°F). It's advisable to prepare for a wide range of temperatures if you're planning to travel during this month.

February Weather in Joliet: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Joliet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joliet, February typically has an average temperature of -7°C (20°F), with highs reaching up to 16°C (61°F) and lows dropping to around -32°C (-25°F).

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

February Precipitation in Joliet

In Joliet in February, the total precipitation amount is 46 mm (1.8 in) spread over the course of 12 days.

February Precipitation Trends in Joliet

The chart displays monthly precipitation patterns in Joliet, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Joliet, February typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Joliet

In Joliet in February humidity is 85%. With an average temperature of -7°C (20°F), this humidity feels like an icy breath that clings to your skin, making travel challenging as the cold seeps into your bones while you navigate through the damp air.

February Average Humidity in Joliet

This chart illustrates the average monthly humidity levels in Joliet, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Joliet is approximately 85%, offering insight into how humid the weather typically is during this month.

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

February UV Index in Joliet

In Joliet in February, 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 Joliet.

Maximum UV Index Levels in Joliet for February

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

Data source: Joliet February 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 February Weather in Joliet Compares to Other Months

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

This table compares monthly weather conditions in Joliet, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	21 mm (0.8 inches)	85%	moderate
February Weather	-7°C (20°F)	46 mm (1.8 inches)	85%	moderate
March Weather	2°C (35°F)	44 mm (1.7 inches)	79%	high
April Weather	5°C (42°F)	76 mm (3.0 inches)	74%	very high
May Weather	12°C (53°F)	82 mm (3.2 inches)	76%	very high
June Weather	18°C (64°F)	76 mm (3.0 inches)	79%	extreme
July Weather	22°C (72°F)	32 mm (1.3 inches)	81%	very high
August Weather	21°C (69°F)	25 mm (1.0 inches)	80%	very high
September Weather	15°C (60°F)	57 mm (2.2 inches)	76%	very high
October Weather	6°C (43°F)	57 mm (2.2 inches)	74%	moderate
November Weather	1°C (35°F)	34 mm (1.3 inches)	81%	moderate
December Weather	-3°C (28°F)	30 mm (1.2 inches)	87%	low