December Weather in Ust'-Ilimsk, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Ust'-Ilimsk, Russian Federation plunges to -22°C (-6°F). Temperatures can dip as low as -46°C (-50°F), while they may peak at a chilly 2°C (35°F). Expect 45 mm (1.8 in) of precipitation spread over 15 days, with a humidity level that soars to a staggering 100%.

December Temperature in Ust'-Ilimsk

In December in Ust'-Ilimsk, the average temperature is -22°C (-6°F). Maximums can reach 2°C (35°F), while minimums can plummet to as low as -46°C (-50°F). Travelers should prepare for extremely cold conditions and dress warmly to enjoy the winter scenery safely.

December Weather in Ust'-Ilimsk: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ust'-Ilimsk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ust'-Ilimsk, December typically has an average temperature of -22°C (-6°F), with highs reaching up to 2°C (35°F) and lows dropping to around -46°C (-50°F).

Data source: Temperature data for Ust'-Ilimsk generated using information from the Copernicus Climate Change Service.

December Precipitation in Ust'-Ilimsk

In Ust'-Ilimsk in December, the total precipitation amount is 45 mm (1.8 in) over the course of 15 days.

December Precipitation Trends in Ust'-Ilimsk

The chart displays monthly precipitation patterns in Ust'-Ilimsk, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ust'-Ilimsk, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Ust'-Ilimsk

In Ust'-Ilimsk in December, humidity is 100%. With an average temperature of -22°C (-6°F), this humidity feels like a biting cold that seeps into your bones, making it challenging to enjoy outdoor activities and requiring careful preparation for travel.

December Average Humidity in Ust'-Ilimsk

This chart illustrates the average monthly humidity levels in Ust'-Ilimsk, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ust'-Ilimsk is approximately 100%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Ust'-Ilimsk

In Ust'-Ilimsk in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Ust'-Ilimsk.

Maximum UV Index Levels in Ust'-Ilimsk for December

The chart shows the monthly maximum UV Index (UVI) for Ust'-Ilimsk in December, 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 December, the maximum UV index in Ust'-Ilimsk typically reaches 1, which falls under the low exposure category.

Data source: Ust'-Ilimsk December 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 December Weather in Ust'-Ilimsk Compares to Other Months

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

This table compares monthly weather conditions in Ust'-Ilimsk, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-6°F)	24 mm (0.9 inches)	99%	low
February Weather	-18°C (-1°F)	22 mm (0.9 inches)	96%	low
March Weather	-7°C (19°F)	30 mm (1.2 inches)	88%	moderate
April Weather	1°C (34°F)	28 mm (1.1 inches)	84%	moderate
May Weather	8°C (47°F)	45 mm (1.8 inches)	76%	moderate
June Weather	17°C (63°F)	51 mm (2.0 inches)	62%	high
July Weather	19°C (66°F)	41 mm (1.6 inches)	67%	high
August Weather	17°C (62°F)	53 mm (2.1 inches)	65%	high
September Weather	8°C (47°F)	58 mm (2.3 inches)	79%	moderate
October Weather	0°C (33°F)	40 mm (1.6 inches)	92%	moderate
November Weather	-12°C (11°F)	44 mm (1.7 inches)	99%	low
December Weather	-22°C (-6°F)	45 mm (1.8 inches)	100%	low