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December Weather in Red Deer, Canada

Last updated: June 18, 2025

In December, the average temperature in Red Deer, Canada hovers around -8°C (17°F), making it a chilly time of year. Expect the mercury to dip as low as -37°C (-35°F) and rise to a maximum of 10°C (51°F). The region sees approximately 23 mm (0.9 in) of precipitation spread over about 8 days, with an average humidity level of an impressive 91%. Prepare accordingly for the cold and wet conditions!

December Temperature in Red Deer

In December in Red Deer, the average temperature is -8°C (17°F). Maximum temperatures can reach 10°C (51°F), while minimums can drop as low as -37°C (-35°F). Travelers should be well-prepared for a wide range of temperatures during this time.

December Weather in Red Deer: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Red Deer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Red Deer, December typically has an average temperature of -8°C (17°F), with highs reaching up to 10°C (51°F) and lows dropping to around -37°C (-35°F).
JanFebMarAprMayJunJulAugSepOctNovDec151124365158626051372517
Data source: Temperature data for Red Deer 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 Red Deer

In Red Deer in December, the precipitation amount is 23 mm (0.9 in) over the course of 8 days.

December Precipitation Trends in Red Deer

The chart displays monthly precipitation patterns in Red Deer, 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 Red Deer, December typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec122129326898874953283123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Red Deer

In Red Deer in December, humidity is 91%. With an average temperature of -8°C (17°F), this humidity feels like a chilly dampness that clings to your skin, making it uncomfortable for traveling as every step feels heavier and the cold seems to seep into your bones.

December Average Humidity in Red Deer

This chart illustrates the average monthly humidity levels in Red Deer, 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 Red Deer is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%87%81%77%77%81%78%73%78%82%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Red Deer

In Red Deer 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 Red Deer.

Maximum UV Index Levels in Red Deer for December

The chart shows the monthly maximum UV Index (UVI) for Red Deer 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 Red Deer typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Red Deer 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 Red Deer Compares to Other Months

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

This table compares monthly weather conditions in Red Deer, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)11 mm (0.5 inches)90%low
February Weather-12°C (11°F)21 mm (0.8 inches)92%moderate
March Weather-4°C (24°F)29 mm (1.1 inches)87%moderate
April Weather2°C (36°F)32 mm (1.3 inches)81%high
May Weather10°C (51°F)68 mm (2.7 inches)77%high
June Weather15°C (59°F)98 mm (3.9 inches)77%very high
July Weather17°C (62°F)87 mm (3.4 inches)81%very high
August Weather16°C (60°F)49 mm (1.9 inches)78%high
September Weather10°C (51°F)53 mm (2.1 inches)73%high
October Weather3°C (37°F)28 mm (1.1 inches)78%moderate
November Weather-4°C (26°F)31 mm (1.2 inches)82%low
December Weather-8°C (17°F)23 mm (0.9 inches)91%low

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