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March Weather in Fort St. John, Canada

Last updated: June 18, 2025

In March, the average temperature in Fort St. John, Canada hovers around -6°C (22°F). While you might experience a chilling minimum of -34°C (-29°F), temperatures can occasionally rise to a maximum of 14°C (57°F). Expect about 31 mm (1.2 in) of precipitation spread over 9 days, with average humidity reaching a high 89%. Stay warm and prepared for the varied weather!

March Temperature in Fort St. John

In March in Fort St. John, the average temperature is -6°C (22°F), with maximums reaching 14°C (57°F) and minimums plunging as low as -34°C (-29°F). Travelers should be prepared for a wide range of temperatures, so layering clothing is essential for comfort.

March Weather in Fort St. John: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Fort St. John, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort St. John, March typically has an average temperature of -6°C (22°F), with highs reaching up to 14°C (57°F) and lows dropping to around -34°C (-29°F).
JanFebMarAprMayJunJulAugSepOctNovDec12921355158615949362114
Data source: Temperature data for Fort St. John 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 St. John

In Fort St. John in March, the precipitation amount is 31 mm (1.2 in) over the course of 9 days.

March Precipitation Trends in Fort St. John

The chart displays monthly precipitation patterns in Fort St. John, 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 St. John, March typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec262632274181935546415022
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Fort St. John

In Fort St. John in March, humidity is 89%. With an average temperature of -6°C (22°F), this humidity feels like an icy blanket clinging to your skin, making travel uncomfortable and the air feel even colder, as if every breath is laced with frost.

March Average Humidity in Fort St. John

This chart illustrates the average monthly humidity levels in Fort St. John, 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 St. John is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%94%89%86%82%80%83%80%83%87%91%95%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Fort St. John

In Fort St. John 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 St. John, you can check the information here.

Maximum UV Index Levels in Fort St. John for March

The chart shows the monthly maximum UV Index (UVI) for Fort St. John 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 St. John typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123577775311
Data source: Fort St. John 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 St. John Compares to Other Months

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

This table compares monthly weather conditions in Fort St. John, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)26 mm (1.0 inches)94%low
February Weather-13°C (9°F)26 mm (1.0 inches)94%low
March Weather-6°C (22°F)31 mm (1.2 inches)89%moderate
April Weather2°C (35°F)27 mm (1.1 inches)86%moderate
May Weather10°C (51°F)41 mm (1.6 inches)82%high
June Weather15°C (59°F)81 mm (3.2 inches)80%high
July Weather16°C (61°F)93 mm (3.7 inches)83%high
August Weather15°C (59°F)55 mm (2.2 inches)80%high
September Weather9°C (49°F)46 mm (1.8 inches)83%moderate
October Weather2°C (37°F)41 mm (1.6 inches)86%moderate
November Weather-6°C (21°F)50 mm (2.0 inches)91%low
December Weather-10°C (15°F)22 mm (0.9 inches)95%low

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