January Weather in Streator, United States

Last updated: June 24, 2025

In January, the average temperature in Streator, United States hovers around -3°C (27°F). Expect a chilling minimum of -31°C (-23°F) and a rare maximum of 16°C (60°F). With 62 mm (2.4 in) of precipitation spread over 8 days, you'll want to be prepared for the damp conditions. The air carries an average humidity of 82%, adding to the winter's crisp feel.

January Temperature in Streator

In January in Streator, the average temperature is -3°C (27°F), with a maximum that can reach 16°C (60°F) and a minimum that can drop to -31°C (-23°F). Visitors should be prepared for significant temperature fluctuations when traveling during this month.

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

The chart illustrates January temperature patterns in Streator, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Streator, January typically has an average temperature of -3°C (27°F), with highs reaching up to 16°C (60°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Streator

In Streator in January, the precipitation amount is 62 mm (2.4 in) over the course of 8 days.

January Precipitation Trends in Streator

The chart displays monthly precipitation patterns in Streator, 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 Streator, January typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Streator

In Streator 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 Streator

This chart illustrates the average monthly humidity levels in Streator, 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 Streator 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 Streator

In Streator 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 Streator, you can check the information here.

Maximum UV Index Levels in Streator for January

The chart shows the monthly maximum UV Index (UVI) for Streator 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 Streator typically reaches 3, which falls under the moderate exposure category.

Data source: Streator 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 Streator Compares to Other Months

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

This table compares monthly weather conditions in Streator, 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)	62 mm (2.4 inches)	82%	moderate
February Weather	-2°C (29°F)	68 mm (2.7 inches)	83%	moderate
March Weather	5°C (41°F)	99 mm (3.9 inches)	84%	high
April Weather	10°C (51°F)	117 mm (4.6 inches)	85%	very high
May Weather	17°C (64°F)	163 mm (6.4 inches)	79%	very high
June Weather	23°C (74°F)	135 mm (5.3 inches)	82%	very high
July Weather	25°C (76°F)	100 mm (3.9 inches)	80%	very high
August Weather	23°C (74°F)	92 mm (3.6 inches)	81%	very high
September Weather	21°C (69°F)	82 mm (3.2 inches)	80%	very high
October Weather	13°C (56°F)	131 mm (5.2 inches)	82%	high
November Weather	4°C (40°F)	56 mm (2.2 inches)	88%	moderate
December Weather	1°C (34°F)	56 mm (2.2 inches)	84%	low