December Weather in Grenfell, Canada

Last updated: June 18, 2025

In December, the average temperature in Grenfell, Canada hovers around -10°C (14°F). This chilly month can bring extreme lows of -38°C (-36°F), while the warmer days peak at a brisk 6°C (43°F). Expect 21 mm (0.8 in) of precipitation spread over 5 days, alongside a high average humidity of 95%, making for a rather frigid and damp atmosphere.

December Temperature in Grenfell

In December in Grenfell, the average temperature is -10°C (14°F), with maximums reaching 6°C (43°F) and minimums plummeting to -38°C (-36°F). Travelers should be prepared for extreme cold and should dress in layers to stay warm.

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

The chart illustrates December temperature patterns in Grenfell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grenfell, December typically has an average temperature of -10°C (14°F), with highs reaching up to 6°C (43°F) and lows dropping to around -38°C (-36°F).

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

December Precipitation in Grenfell

In Grenfell in December, the precipitation amount is 21 mm (0.8 in) spread over a period of 5 days.

December Precipitation Trends in Grenfell

The chart displays monthly precipitation patterns in Grenfell, 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 Grenfell, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 5 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 Grenfell

In Grenfell in December, humidity is 95%. With an average temperature of -10°C (14°F), this humidity feels like an icy fog enveloping you, sapping your energy and making even short journeys feel like a struggle through thick, frigid air.

December Average Humidity in Grenfell

This chart illustrates the average monthly humidity levels in Grenfell, 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 Grenfell is approximately 95%, 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 Grenfell

In Grenfell 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 Grenfell.

Maximum UV Index Levels in Grenfell for December

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

Data source: Grenfell 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 Grenfell Compares to Other Months

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

This table compares monthly weather conditions in Grenfell, 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 (8°F)	14 mm (0.6 inches)	91%	low
February Weather	-16°C (4°F)	13 mm (0.5 inches)	94%	moderate
March Weather	-5°C (23°F)	26 mm (1.0 inches)	91%	moderate
April Weather	2°C (35°F)	30 mm (1.2 inches)	79%	high
May Weather	11°C (52°F)	43 mm (1.7 inches)	71%	very high
June Weather	17°C (62°F)	100 mm (3.9 inches)	65%	very high
July Weather	19°C (67°F)	55 mm (2.2 inches)	75%	very high
August Weather	17°C (63°F)	50 mm (2.0 inches)	76%	very high
September Weather	12°C (54°F)	57 mm (2.2 inches)	73%	high
October Weather	3°C (38°F)	31 mm (1.2 inches)	77%	moderate
November Weather	-5°C (23°F)	28 mm (1.1 inches)	88%	low
December Weather	-10°C (14°F)	21 mm (0.8 inches)	95%	low