December Weather in Thompson, United States

Last updated: June 24, 2025

In December, the average temperature in Thompson, United States hovers around -8°C (17°F). Expect drastic fluctuations, with minimums plummeting to -32°C (-26°F) and maximums reaching up to 9°C (49°F). This month also brings a total precipitation of 38 mm (1.5 in) spread over 7 days, while humidity remains high at an average of 86%.

December Temperature in Thompson

In December in Thompson, the average temperature is -8°C (17°F). The maximum can reach 9°C (49°F) and the minimum can be as low as -32°C (-26°F). It's essential to pack warm clothing if you're planning to travel during this cold period.

December Weather in Thompson: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Thompson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thompson, December typically has an average temperature of -8°C (17°F), with highs reaching up to 9°C (49°F) and lows dropping to around -32°C (-26°F).

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

December Precipitation in Thompson

In Thompson in December, the precipitation amount is 38 mm (1.5 in) over the course of 7 days.

December Precipitation Trends in Thompson

The chart displays monthly precipitation patterns in Thompson, 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 Thompson, December typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Thompson

In Thompson in December, humidity is 86%. With an average temperature of -8°C (17°F), this humidity feels like an icy blanket wrapping around you, making travel outside feel uncomfortably frigid and damp, as if you're stepping into a chilled, moist cloud that clings to your skin, often leading to a biting chill that seeps into your bones.

December Average Humidity in Thompson

This chart illustrates the average monthly humidity levels in Thompson, 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 Thompson is approximately 86%, 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 Thompson

In Thompson in December, 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 Thompson, you can visit Hourly UV Index in Thompson.

Maximum UV Index Levels in Thompson for December

The chart shows the monthly maximum UV Index (UVI) for Thompson 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 Thompson typically reaches 2, which falls under the low exposure category.

Data source: Thompson 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 Thompson Compares to Other Months

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

This table compares monthly weather conditions in Thompson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (10°F)	18 mm (0.7 inches)	90%	low
February Weather	-13°C (8°F)	20 mm (0.8 inches)	92%	moderate
March Weather	-3°C (27°F)	25 mm (1.0 inches)	85%	moderate
April Weather	4°C (39°F)	39 mm (1.5 inches)	81%	high
May Weather	13°C (56°F)	55 mm (2.2 inches)	75%	very high
June Weather	20°C (69°F)	87 mm (3.4 inches)	79%	very high
July Weather	22°C (72°F)	58 mm (2.3 inches)	76%	very high
August Weather	20°C (68°F)	77 mm (3.1 inches)	78%	very high
September Weather	15°C (60°F)	71 mm (2.8 inches)	77%	high
October Weather	6°C (44°F)	78 mm (3.1 inches)	79%	moderate
November Weather	-3°C (27°F)	24 mm (1.0 inches)	86%	moderate
December Weather	-8°C (17°F)	38 mm (1.5 inches)	86%	low