December Weather in Outlook, Canada

Last updated: June 18, 2025

In Outlook, Canada, the average temperature in December hovers around -10°C (15°F), with extremes plunging as low as -38°C (-35°F) and rising to a maximum of 6°C (44°F). Expect 15 mm (0.6 in) of precipitation over approximately 3 days, coupled with a high average humidity of 94%. Prepare for a chilly yet invigorating atmosphere!

December Temperature in Outlook

In December in Outlook, the average temperature is -10°C (15°F). Maximum temperatures can reach 6°C (44°F), while minimum temperatures can drop as low as -38°C (-35°F). Travelers should be prepared for extremely cold weather conditions and dress accordingly to ensure warmth and comfort during their visit.

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

The chart illustrates December temperature patterns in Outlook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Outlook, December typically has an average temperature of -10°C (15°F), with highs reaching up to 6°C (44°F) and lows dropping to around -38°C (-35°F).

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

December Precipitation in Outlook

In Outlook in December, the precipitation amount is 15 mm (0.6 in) over the course of 3 days.

December Precipitation Trends in Outlook

The chart displays monthly precipitation patterns in Outlook, 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 Outlook, December typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 3 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 Outlook

In Outlook in December, humidity is 94%. With an average temperature of -10°C (15°F), this humidity feels like a biting chill that penetrates through your clothing, making it difficult to enjoy outdoor activities and requiring extra layers to stay warm and dry while traveling.

December Average Humidity in Outlook

This chart illustrates the average monthly humidity levels in Outlook, 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 Outlook is approximately 94%, 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 Outlook

In Outlook 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 Outlook.

Maximum UV Index Levels in Outlook for December

The chart shows the monthly maximum UV Index (UVI) for Outlook 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 Outlook typically reaches 1, which falls under the low exposure category.

Data source: Outlook 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 Outlook Compares to Other Months

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

This table compares monthly weather conditions in Outlook, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (10°F)	14 mm (0.5 inches)	91%	low
February Weather	-15°C (5°F)	11 mm (0.4 inches)	93%	moderate
March Weather	-5°C (23°F)	21 mm (0.8 inches)	88%	moderate
April Weather	3°C (37°F)	19 mm (0.8 inches)	74%	high
May Weather	12°C (54°F)	34 mm (1.3 inches)	72%	high
June Weather	17°C (63°F)	64 mm (2.5 inches)	65%	very high
July Weather	20°C (67°F)	44 mm (1.7 inches)	77%	very high
August Weather	18°C (64°F)	38 mm (1.5 inches)	76%	high
September Weather	12°C (54°F)	41 mm (1.6 inches)	69%	high
October Weather	4°C (39°F)	28 mm (1.1 inches)	75%	moderate
November Weather	-5°C (23°F)	31 mm (1.2 inches)	86%	low
December Weather	-10°C (15°F)	15 mm (0.6 inches)	94%	low