nomadseason

December Weather in Trois-Rivieres, Canada

Last updated: June 18, 2025

In December, the average temperature in Trois-Rivieres, Canada hovers around -6°C (21°F), with minimums dipping to -27°C (-16°F) and maximums reaching up to 13°C (55°F). Expect 95 mm (3.7 in) of precipitation spread over 11 days, contributing to an average humidity of a chilly 93%. Stay prepared for a frosty and damp month!

December Temperature in Trois-Rivieres

In December in Trois-Rivieres, the average temperature is -6°C (21°F), with a maximum that can reach 13°C (55°F) and a minimum that can drop as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures, especially in the colder parts of the month.

December Weather in Trois-Rivieres: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Trois-Rivieres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trois-Rivieres, December typically has an average temperature of -6°C (21°F), with highs reaching up to 13°C (55°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec151827415665716961493321
Data source: Temperature data for Trois-Rivieres generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Trois-Rivieres

In Trois-Rivieres in December, the total precipitation amount is 95 mm (3.7 in) spread over 11 days.

December Precipitation Trends in Trois-Rivieres

The chart displays monthly precipitation patterns in Trois-Rivieres, 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 Trois-Rivieres, December typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec858190117102109981176912712095
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Trois-Rivieres

In Trois-Rivieres in December, humidity is 93%. With an average temperature of -6°C (21°F), this humidity feels like an icy mist that clings to your skin, making every breath feel crisp and challenging for outdoor exploration.

December Average Humidity in Trois-Rivieres

This chart illustrates the average monthly humidity levels in Trois-Rivieres, 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 Trois-Rivieres is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%90%86%78%71%79%78%78%87%90%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Trois-Rivieres

In Trois-Rivieres 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 Trois-Rivieres, you can visit Hourly UV Index in Trois-Rivieres.

Maximum UV Index Levels in Trois-Rivieres for December

The chart shows the monthly maximum UV Index (UVI) for Trois-Rivieres 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 Trois-Rivieres typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799887532
Data source: Trois-Rivieres 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 Trois-Rivieres Compares to Other Months

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

This table compares monthly weather conditions in Trois-Rivieres, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)85 mm (3.3 inches)95%low
February Weather-8°C (18°F)81 mm (3.2 inches)94%moderate
March Weather-3°C (27°F)90 mm (3.5 inches)90%moderate
April Weather5°C (41°F)117 mm (4.6 inches)86%high
May Weather13°C (56°F)102 mm (4.0 inches)77%very high
June Weather18°C (65°F)109 mm (4.3 inches)71%very high
July Weather22°C (71°F)98 mm (3.9 inches)79%very high
August Weather21°C (69°F)117 mm (4.6 inches)78%very high
September Weather16°C (61°F)69 mm (2.7 inches)78%high
October Weather9°C (49°F)127 mm (5.0 inches)87%moderate
November Weather1°C (33°F)120 mm (4.7 inches)90%moderate
December Weather-6°C (21°F)95 mm (3.7 inches)93%low

Compare Trois-Rivieres's Climate with Cities Worldwide