January Weather in Sidney, United States

Last updated: June 24, 2025

In Sidney, United States, the average temperature in January hovers around 0°C (32°F). Expect minimums to dip as low as -23°C (-9°F) and occasional maximums reaching 18°C (65°F). During this month, you can anticipate about 12 mm (0.5 in) of precipitation over approximately 3 days, accompanied by an average humidity level of 72%.

January Temperature in Sidney

In January in Sidney, the average temperature is 0°C (32°F). Maximum temperatures can reach 18°C (65°F), while the minimum can drop as low as -23°C (-9°F). Travelers should be prepared for a wide temperature range and dress in layers to ensure comfort.

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

The chart illustrates January temperature patterns in Sidney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sidney, January typically has an average temperature of 0°C (32°F), with highs reaching up to 18°C (65°F) and lows dropping to around -23°C (-9°F).

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

January Precipitation in Sidney

In Sidney in January, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

January Precipitation Trends in Sidney

The chart displays monthly precipitation patterns in Sidney, 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 Sidney, January typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 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 Sidney

In Sidney in January, humidity is 72%. With an average temperature of 0°C (32°F), this humidity feels like walking in a damp, chilly fog, making traveling uncomfortable as the cold seeps into your bones and the weight of the moisture clings to your clothes.

January Average Humidity in Sidney

This chart illustrates the average monthly humidity levels in Sidney, 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 Sidney is approximately 72%, 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 Sidney

In Sidney 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 Sidney, you can check the information here.

Maximum UV Index Levels in Sidney for January

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

Data source: Sidney 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 Sidney Compares to Other Months

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

This table compares monthly weather conditions in Sidney, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	12 mm (0.5 inches)	72%	moderate
February Weather	-1°C (30°F)	18 mm (0.7 inches)	76%	moderate
March Weather	5°C (42°F)	63 mm (2.5 inches)	61%	high
April Weather	9°C (48°F)	58 mm (2.3 inches)	60%	very high
May Weather	14°C (57°F)	116 mm (4.6 inches)	74%	very high
June Weather	22°C (71°F)	51 mm (2.0 inches)	82%	extreme
July Weather	24°C (76°F)	48 mm (1.9 inches)	82%	extreme
August Weather	23°C (73°F)	31 mm (1.2 inches)	84%	very high
September Weather	19°C (67°F)	26 mm (1.0 inches)	75%	very high
October Weather	9°C (49°F)	31 mm (1.2 inches)	73%	high
November Weather	6°C (42°F)	21 mm (0.8 inches)	74%	moderate
December Weather	1°C (35°F)	14 mm (0.6 inches)	77%	moderate