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December Weather in Thompson, Canada

Last updated: June 18, 2025

In December, the average temperature in Thompson, Canada hovers around -19°C (-2°F), with extremes reaching as low as -39°C (-38°F) and peaking at 2°C (36°F). Expect 27 mm (1.0 in) of precipitation spread over about 8 days, creating a damp atmosphere with an average humidity of 96%.

December Temperature in Thompson

In December in Thompson, the average temperature is -19°C (-2°F), with a maximum that can reach 2°C (36°F) and a minimum that can drop as low as -39°C (-38°F). Travelers should prepare for extremely cold conditions and dress accordingly to enjoy their time in Thompson.

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 -19°C (-2°F), with highs reaching up to 2°C (36°F) and lows dropping to around -39°C (-38°F).
JanFebMarAprMayJunJulAugSepOctNovDec-5-7122642576460483411-2
Data source: Temperature data for Thompson generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Thompson

In Thompson in December, the total precipitation amount is 27 mm (1.0 in), distributed over 8 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 27 mm (1.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec2614314042921128864494327
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Thompson

In Thompson in December, humidity is 96%. With an average temperature of -19°C (-2°F), this humidity feels like walking through an icy fog that chills you to the bone, making travel uncomfortable and your breath visible in the frigid air.

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 96%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%94%94%86%78%67%83%85%86%89%88%96%
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 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 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 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
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.
 TemperaturePrecipitationHumidityUV
January Weather-21°C (-5°F)26 mm (1.0 inches)96%low
February Weather-21°C (-6°F)14 mm (0.5 inches)94%low
March Weather-11°C (12°F)31 mm (1.2 inches)93%moderate
April Weather-4°C (26°F)40 mm (1.6 inches)86%moderate
May Weather6°C (43°F)42 mm (1.7 inches)78%high
June Weather14°C (57°F)92 mm (3.6 inches)67%very high
July Weather18°C (65°F)112 mm (4.4 inches)83%high
August Weather15°C (60°F)88 mm (3.4 inches)85%high
September Weather9°C (49°F)64 mm (2.5 inches)86%moderate
October Weather1°C (34°F)49 mm (1.9 inches)89%moderate
November Weather-12°C (11°F)43 mm (1.7 inches)88%low
December Weather-19°C (-2°F)27 mm (1.0 inches)96%low

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