January Weather in Caledon, Canada

Last updated: June 18, 2025

In January, the average temperature in Caledon, Canada hovers around -5°C (22°F). You might encounter chilling lows of -27°C (-16°F), while the warmest days can reach up to 12°C (53°F). Be prepared for 66 mm (2.6 in) of precipitation spread over 8 days, contributing to the high average humidity of 90%.

January Temperature in Caledon

In January in Caledon, the average temperature is -5°C (22°F). Maximums can reach 12°C (53°F) while minimums can dip as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

January Weather in Caledon: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Caledon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caledon, January typically has an average temperature of -5°C (22°F), with highs reaching up to 12°C (53°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Caledon

In Caledon in January, the total precipitation amount is 66 mm (2.6 in) over the course of 8 days.

January Precipitation Trends in Caledon

The chart displays monthly precipitation patterns in Caledon, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Caledon, January typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Caledon

In Caledon in January, humidity is 90%. With an average temperature of -5°C (22°F), this humidity feels like walking through a frozen fog, where each breath brings a chill that clings to your skin, making every step outside a brisk challenge.

January Average Humidity in Caledon

This chart illustrates the average monthly humidity levels in Caledon, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Caledon is approximately 90%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Caledon

In Caledon in January, 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 Caledon, you can visit Hourly UV Index in Caledon.

Maximum UV Index Levels in Caledon for January

The chart shows the monthly maximum UV Index (UVI) for Caledon in January, 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 January, the maximum UV index in Caledon typically reaches 2, which falls under the low exposure category.

Data source: Caledon January 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 January Weather in Caledon Compares to Other Months

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

This table compares monthly weather conditions in Caledon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (22°F)	66 mm (2.6 inches)	90%	low
February Weather	-5°C (24°F)	70 mm (2.8 inches)	90%	moderate
March Weather	0°C (32°F)	59 mm (2.3 inches)	87%	moderate
April Weather	5°C (42°F)	105 mm (4.1 inches)	87%	very high
May Weather	13°C (55°F)	97 mm (3.8 inches)	82%	very high
June Weather	19°C (66°F)	103 mm (4.0 inches)	81%	very high
July Weather	21°C (71°F)	84 mm (3.3 inches)	79%	very high
August Weather	20°C (69°F)	97 mm (3.8 inches)	80%	very high
September Weather	16°C (62°F)	71 mm (2.8 inches)	81%	high
October Weather	10°C (50°F)	101 mm (4.0 inches)	84%	moderate
November Weather	2°C (36°F)	75 mm (3.0 inches)	88%	moderate
December Weather	-2°C (29°F)	70 mm (2.7 inches)	87%	low