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March Weather in Fort Smith, Canada

Last updated: June 18, 2025

In March, the average temperature in Fort Smith, Canada hovers around -12°C (10°F). However, temperatures can plummet to a chilling -40°C (-39°F) or rise to a mild 12°C (55°F). Expect 14 mm (0.6 in) of precipitation spread over 5 days, with an average humidity of a staggering 93%!

March Temperature in Fort Smith

In March in Fort Smith, the average temperature is -12°C (10°F), with maximums reaching 12°C (55°F) and minimums dropping as low as -40°C (-39°F). Be sure to bundle up and prepare for a wide range of temperatures if you're planning to travel during this time!

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

The chart illustrates March 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, March typically has an average temperature of -12°C (10°F), with highs reaching up to 12°C (55°F) and lows dropping to around -40°C (-39°F).
JanFebMarAprMayJunJulAugSepOctNovDec-5-7102647606460473412-4
Data source: Temperature data for Fort Smith generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Fort Smith

In Fort Smith in March, the precipitation amount is 14 mm (0.6 in) distributed over 5 days.

March Precipitation Trends in Fort Smith

The chart displays monthly precipitation patterns in Fort Smith, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Fort Smith, March typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec221414173266637648313020
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Fort Smith

In Fort Smith in March, humidity is 93%. With an average temperature of -12°C (10°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and potentially hazardous as frostbite can set in quickly without proper clothing.

March Average Humidity in Fort Smith

This chart illustrates the average monthly humidity levels in Fort Smith, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Fort Smith is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%96%93%82%68%60%73%80%82%90%95%98%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Fort Smith

In Fort Smith in March, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Fort Smith, you can check the information here.

Maximum UV Index Levels in Fort Smith for March

The chart shows the monthly maximum UV Index (UVI) for Fort Smith in March, 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 March, the maximum UV index in Fort Smith typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123456664211
Data source: Fort Smith March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
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 Weather8°C (47°F)32 mm (1.3 inches)68%moderate
June Weather16°C (61°F)66 mm (2.6 inches)60%high
July Weather18°C (64°F)63 mm (2.5 inches)73%high
August Weather16°C (60°F)76 mm (3.0 inches)80%high
September Weather9°C (48°F)48 mm (1.9 inches)82%moderate
October Weather1°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

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