January Weather in Sidney, United States

Last updated: June 24, 2025

In January, the average temperature in Sidney, United States hovers around -8°C (17°F), with extremes reaching as low as -39°C (-39°F) and peaking at 10°C (51°F). The region experiences a moderate precipitation amount of 10 mm (0.4 in) over approximately 3 days, accompanied by a high average humidity of 83%, contributing to a chilly and damp climate.

January Temperature in Sidney

In January in Sidney, the average temperature is -8°C (17°F). Maximum temperatures can reach 10°C (51°F), while the minimum can drop as low as -39°C (-39°F). Travelers should prepare for a wide range of temperatures and pack accordingly for their visit.

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 -8°C (17°F), with highs reaching up to 10°C (51°F) and lows dropping to around -39°C (-39°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 10 mm (0.4 in) over a period 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 10 mm (0.4 inches) of precipitation spread over approximately 3 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Sidney

In Sidney in January humidity is 83%. With an average temperature of -8°C (17°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

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 83%, 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 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Sidney, you can visit Hourly UV Index in Sidney.

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 2, which falls under the low 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	-8°C (17°F)	10 mm (0.4 inches)	83%	low
February Weather	-11°C (13°F)	22 mm (0.8 inches)	86%	moderate
March Weather	-1°C (31°F)	21 mm (0.8 inches)	77%	moderate
April Weather	5°C (41°F)	25 mm (1.0 inches)	72%	very high
May Weather	13°C (55°F)	53 mm (2.1 inches)	77%	very high
June Weather	19°C (67°F)	67 mm (2.6 inches)	79%	very high
July Weather	23°C (73°F)	38 mm (1.5 inches)	78%	very high
August Weather	21°C (70°F)	39 mm (1.5 inches)	74%	very high
September Weather	15°C (60°F)	60 mm (2.3 inches)	68%	high
October Weather	6°C (43°F)	30 mm (1.2 inches)	70%	moderate
November Weather	-1°C (31°F)	19 mm (0.7 inches)	80%	moderate
December Weather	-6°C (22°F)	18 mm (0.7 inches)	84%	low