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June Weather in Fort St. John, Canada

Last updated: June 18, 2025

In Fort St. John, Canada, the average temperature in June hovers around 15°C (59°F), while it can range from a chilly 2°C (37°F) to a sizzling 39°C (103°F). Expect 81 mm (3.2 in) of precipitation spread over 13 days, contributing to an average humidity of 80%. Make sure to pack accordingly for this diverse climate!

June Temperature in Fort St. John

In June in Fort St. John, the average temperature is 15°C (59°F). The maximum can reach 39°C (103°F), and the minimum can be as low as 2°C (37°F). It's advisable to pack for both warm and cool conditions when traveling to Fort St. John during this time.

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

The chart illustrates June 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, June typically has an average temperature of 15°C (59°F), with highs reaching up to 39°C (103°F) and lows dropping to around 2°C (37°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.

June Precipitation in Fort St. John

In Fort St. John in June, the precipitation amount is 81 mm (3.2 in) over the course of 13 days.

June Precipitation Trends in Fort St. John

The chart displays monthly precipitation patterns in Fort St. John, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Fort St. John, June typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec262632274181935546415022
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Fort St. John

In Fort St. John in June, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

June Average Humidity in Fort St. John

This chart illustrates the average monthly humidity levels in Fort St. John, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Fort St. John is approximately 80%, 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Fort St. John

In Fort St. John in June, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Fort St. John.

Maximum UV Index Levels in Fort St. John for June

The chart shows the monthly maximum UV Index (UVI) for Fort St. John in June, 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 June, the maximum UV index in Fort St. John typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123577775311
Data source: Fort St. John June 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 June 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 June’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 June’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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