Fort Saint James
Canada
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Fort Saint James, Canada

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  • The average high temperature in September: 16.2°C

The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is December (-5.2°C).

  • The average low temperature in September: 2.8°C

The month with the highest average low temperature is July (7.7°C).
The coldest month (with the lowest average low temperature) is December (-13.5°C).

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  • The average humidity in September: 52.7%

The month with the highest relative humidity is December (84.2%).
The month with the lowest relative humidity is May (44.1%).

  • The average rainfall in September: 40.4mm

The wettest month (with the highest rainfall) is June (54.2mm).
Driest months (with the lowest rainfall) are January and March (3mm).

  • The average rainfall days in September: 11.7 days

The month with the highest number of rainy days is June (14.8 days).
The month with the lowest number of rainy days is December (1.5 days).

  • The average snowfall in September: 0mm

The month with the highest snowfall is January (459mm).
Months with the lowest snowfall are June, July, August and September (0mm).

  • The average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (14.4 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

  • The average sunshine in September: 5.9h

The month with most sunshine is July (Average sunshine: 8.9h).
The month with least sunshine is December (Average sunshine: 1.3h).

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