January Weather in Fort Smith, Canada

Last updated: June 18, 2025

In January, the average temperature in Fort Smith, Canada plummets to -21°C (-5°F), with extremes reaching a chilling -41°C (-42°F) and peaking at a mild 1°C (34°F). Expect 22 mm (0.8 in) of precipitation over approximately 5 days, contributing to an astonishing average humidity of 96%. Prepare for a frigid, yet captivating winter experience!

January Temperature in Fort Smith

In January in Fort Smith, the average temperature is -21°C (-5°F), with maximums reaching 1°C (34°F) and minimums dropping as low as -41°C (-42°F). Travelers should be well-prepared for extreme cold conditions during this time.

January Weather in Fort Smith: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Fort Smith, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Smith, January typically has an average temperature of -21°C (-5°F), with highs reaching up to 1°C (34°F) and lows dropping to around -41°C (-42°F).

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

January Precipitation in Fort Smith

In Fort Smith in January, the precipitation amount is 22 mm (0.8 in) over the course of 5 days.

January Precipitation Trends in Fort Smith

The chart displays monthly precipitation patterns in Fort Smith, 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 Fort Smith, January typically receives around 22 mm (0.8 inches) of precipitation spread over approximately 5 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 Fort Smith

In Fort Smith in January humidity is 96%. With an average temperature of -21°C (-5°F), this humidity feels like a biting chill that makes breathing difficult, turning the air into a thick, frosty mist that clings to your skin, making any outdoor activities feel like an endurance test rather than a leisurely journey.

January Average Humidity in Fort Smith

This chart illustrates the average monthly humidity levels in Fort Smith, 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 Fort Smith is approximately 96%, 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 Fort Smith

In Fort Smith in January, 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 Fort Smith.

Maximum UV Index Levels in Fort Smith for January

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

Data source: Fort Smith 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 Fort Smith Compares to Other Months

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

This table compares monthly weather conditions in Fort Smith, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-5°F)	22 mm (0.8 inches)	96%	low
February Weather	-22°C (-6°F)	14 mm (0.5 inches)	96%	low
March Weather	-12°C (10°F)	14 mm (0.6 inches)	93%	moderate
April Weather	-3°C (27°F)	17 mm (0.7 inches)	82%	moderate
May Weather	8°C (47°F)	32 mm (1.3 inches)	68%	moderate
June Weather	16°C (61°F)	66 mm (2.6 inches)	60%	high
July Weather	18°C (64°F)	63 mm (2.5 inches)	73%	high
August Weather	16°C (60°F)	76 mm (3.0 inches)	80%	high
September Weather	9°C (48°F)	48 mm (1.9 inches)	82%	moderate
October Weather	1°C (34°F)	31 mm (1.2 inches)	90%	low
November Weather	-11°C (12°F)	30 mm (1.2 inches)	95%	low
December Weather	-20°C (-3°F)	20 mm (0.8 inches)	98%	low