January Weather in Smiths Falls, Canada

Last updated: June 18, 2025

During January, the average temperature in Smiths Falls, Canada hovers around -8°C (19°F). Expect chilly extremes, as temperatures can drop to a frigid -30°C (-22°F) or occasionally climb to a milder 11°C (52°F). With 73 mm (2.9 in) of precipitation spread over 9 days, don't forget your umbrella! The air remains quite humid, with an average humidity level of 93%, making this month feel quite brisk.

January Temperature in Smiths Falls

In January in Smiths Falls, the average temperature is -8°C (19°F). Maximum temperatures can reach 11°C (52°F), while minimums can drop as low as -30°C (-22°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for their visit.

January Weather in Smiths Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Smiths Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smiths Falls, January typically has an average temperature of -8°C (19°F), with highs reaching up to 11°C (52°F) and lows dropping to around -30°C (-22°F).

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

January Precipitation in Smiths Falls

In Smiths Falls in January, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.

January Precipitation Trends in Smiths Falls

The chart displays monthly precipitation patterns in Smiths Falls, 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 Smiths Falls, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 9 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 Smiths Falls

In Smiths Falls in January humidity is 93%. With an average temperature of -8°C (19°F), this humidity feels like an icy blanket enveloping you, making every breath feel heavy and cold, which can be quite challenging for traveling as the chill settles into your bones and damp clothing makes the exploration far less enjoyable.

January Average Humidity in Smiths Falls

This chart illustrates the average monthly humidity levels in Smiths Falls, 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 Smiths Falls is approximately 93%, 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 Smiths Falls

In Smiths Falls 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 Smiths Falls, you can visit Hourly UV Index in Smiths Falls.

Maximum UV Index Levels in Smiths Falls for January

The chart shows the monthly maximum UV Index (UVI) for Smiths Falls 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 Smiths Falls typically reaches 2, which falls under the low exposure category.

Data source: Smiths Falls 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 Smiths Falls Compares to Other Months

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

This table compares monthly weather conditions in Smiths Falls, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (19°F)	73 mm (2.9 inches)	93%	low
February Weather	-6°C (21°F)	74 mm (2.9 inches)	93%	moderate
March Weather	-2°C (29°F)	77 mm (3.0 inches)	86%	moderate
April Weather	6°C (43°F)	116 mm (4.6 inches)	82%	very high
May Weather	13°C (55°F)	103 mm (4.1 inches)	75%	very high
June Weather	18°C (64°F)	87 mm (3.4 inches)	68%	very high
July Weather	22°C (71°F)	113 mm (4.4 inches)	69%	very high
August Weather	20°C (69°F)	91 mm (3.6 inches)	67%	very high
September Weather	16°C (62°F)	57 mm (2.2 inches)	72%	high
October Weather	10°C (50°F)	130 mm (5.1 inches)	83%	moderate
November Weather	2°C (35°F)	91 mm (3.6 inches)	88%	moderate
December Weather	-4°C (25°F)	77 mm (3.0 inches)	89%	low