September Weather in Fort McPherson, Canada

Last updated: June 18, 2025

In September, the average temperature in Fort McPherson, Canada hovers around 6°C (42°F). Expect variations with a minimum of -9°C (16°F) and a maximum reaching 23°C (74°F). During this month, anticipate around 50 mm (2.0 in) of precipitation spread over 12 days, contributing to an average humidity of 90%.

September Temperature in Fort McPherson

In September in Fort McPherson, the average temperature is 6°C (42°F), with a maximum that can reach 23°C (74°F) and a minimum that can drop as low as -9°C (16°F). This variation in temperature makes Fort McPherson a destination where travelers should be prepared for both mild and chilly weather, so layering clothing is recommended.

September Weather in Fort McPherson: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fort McPherson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort McPherson, September typically has an average temperature of 6°C (42°F), with highs reaching up to 23°C (74°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec-12-111163854605342272-10
Data source: Temperature data for Fort McPherson 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.

September Precipitation in Fort McPherson

In Fort McPherson in September, the precipitation amount is 50 mm (2.0 in), occurring over the course of 12 days.

September Precipitation Trends in Fort McPherson

The chart displays monthly precipitation patterns in Fort McPherson, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Fort McPherson, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec241515162233447250312225
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fort McPherson

In Fort McPherson in September, humidity is 90%. With an average temperature of 6°C (42°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious and causing your clothes to cling uncomfortably, which can be quite challenging for traveling.

September Average Humidity in Fort McPherson

This chart illustrates the average monthly humidity levels in Fort McPherson, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Fort McPherson is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%88%80%80%83%86%90%99%100%98%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort McPherson

In Fort McPherson in September, 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 McPherson, you can check the information here.

Maximum UV Index Levels in Fort McPherson for September

The chart shows the monthly maximum UV Index (UVI) for Fort McPherson in September, 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 September, the maximum UV index in Fort McPherson typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543111
Data source: Fort McPherson September 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 September Weather in Fort McPherson Compares to Other Months

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

This table compares monthly weather conditions in Fort McPherson, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-24°C (-12°F)24 mm (0.9 inches)97%low
February Weather-24°C (-11°F)15 mm (0.6 inches)95%low
March Weather-17°C (1°F)15 mm (0.6 inches)91%low
April Weather-9°C (16°F)16 mm (0.6 inches)88%moderate
May Weather4°C (39°F)22 mm (0.9 inches)80%moderate
June Weather12°C (55°F)33 mm (1.3 inches)80%moderate
July Weather15°C (60°F)44 mm (1.7 inches)83%moderate
August Weather12°C (53°F)72 mm (2.8 inches)86%moderate
September Weather6°C (42°F)50 mm (2.0 inches)90%moderate
October Weather-3°C (27°F)31 mm (1.2 inches)99%low
November Weather-17°C (2°F)22 mm (0.9 inches)100%low
December Weather-23°C (-10°F)25 mm (1.0 inches)98%low

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