January Weather in Sidell, United States

Last updated: June 24, 2025

In January, the average temperature in Sidell, United States hovers around -2°C (29°F). While winter's chill can plunge to a brisk -27°C (-16°F), the mercury can also rise to a pleasant 18°C (65°F) on warmer days. Expect about 79 mm (3.1 in) of precipitation over 9 days, with an average humidity of 84% adding to the atmospheric mix.

January Temperature in Sidell

In January in Sidell, the average temperature is -2°C (29°F), with maximums reaching 18°C (65°F) and minimums dropping as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.

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

The chart illustrates January temperature patterns in Sidell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sidell, January typically has an average temperature of -2°C (29°F), with highs reaching up to 18°C (65°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Sidell

In Sidell in January, the precipitation amount is 79 mm (3.1 in) spread over 9 days.

January Precipitation Trends in Sidell

The chart displays monthly precipitation patterns in Sidell, 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 Sidell, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 9 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 Sidell

In Sidell in January, humidity is 84%. With an average temperature of -2°C (29°F), this humidity feels like an icy blanket that clings to your skin, making it difficult to stay warm and comfortable while traveling.

January Average Humidity in Sidell

This chart illustrates the average monthly humidity levels in Sidell, 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 Sidell is approximately 84%, 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 Sidell

In Sidell 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 Sidell, you can check the information here.

Maximum UV Index Levels in Sidell for January

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

Data source: Sidell 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 Sidell Compares to Other Months

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

This table compares monthly weather conditions in Sidell, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	79 mm (3.1 inches)	84%	moderate
February Weather	0°C (32°F)	79 mm (3.1 inches)	82%	moderate
March Weather	6°C (43°F)	112 mm (4.4 inches)	84%	high
April Weather	11°C (53°F)	114 mm (4.5 inches)	83%	very high
May Weather	18°C (65°F)	143 mm (5.6 inches)	80%	very high
June Weather	24°C (75°F)	105 mm (4.1 inches)	83%	extreme
July Weather	25°C (78°F)	92 mm (3.6 inches)	82%	very high
August Weather	24°C (75°F)	106 mm (4.2 inches)	82%	very high
September Weather	21°C (71°F)	74 mm (2.9 inches)	79%	very high
October Weather	14°C (58°F)	120 mm (4.7 inches)	79%	high
November Weather	5°C (42°F)	79 mm (3.1 inches)	88%	moderate
December Weather	2°C (36°F)	61 mm (2.4 inches)	87%	moderate