Alert
Canada
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Alert, Canada

September, the first month of the autumn, in Alert, is also a subzero cold month, with average temperature ranging between min -11.5°C (11.3°F) and max -5.3°C (22.5°F).

Temperature

In September, the average high-temperature declines considerably, from a wintry 3.3°C (37.9°F) in August, to a subzero cold -5.3°C (22.5°F). The average low-temperature, in September, is -11.5°C (11.3°F).

Humidity

In Alert, the average relative humidity is 84.6%.

Rainfall

September is the last month it rains. During 0.2 rainfall days, in September, Alert aggregates 0.1mm (0") of precipitation. In Alert, Canada, during the entire year, the rain falls for 10.7 days and collects up to 17.4mm (0.7") of precipitation.

Snowfall

Months with snowfall in Alert are January through December. The month with the most snowfall in Alert is September when snow falls for 11.3 days and typically aggregates up to 331mm (13") of snow.

Daylight

In Alert, the average length of the day is 16.4h.

Sunshine

In Alert, the average sunshine in September is 3.7h.

What is the temperature in September in Alert?

In September, in Alert, Canada, the average high-temperature is -5.3°C (22.5°F), and the average low-temperature is -11.5°C (11.3°F).

What is the average humidity in September in Alert?

In September, the average relative humidity in Alert, Canada, is 84.6%.

What is the last month it rains in Alert?

September is the last month it rains. During 0.2 rainfall days, in September, Alert aggregates 0.1mm (0") of precipitation.

How much does it snow in Alert in September?

In September, in Alert, it is snowing for 11.3 days. Throughout September, 331mm (13") of snow is accumulated.

What is the snowiest month in Alert?

September is the month with the most snowfall in Alert, Canada. Snow falls for 11.3 days and accumulates 331mm (13") of snow.

How many hours of daylight does Alert have in September?

The average length of the day in September in Alert is 16.4h.

How many hours of sunshine does Alert have in September?

In September, the average sunshine in Alert, Canada, is 3.7h.
Average temperature in September - Alert, Canada
  • Average high temperature in September: -5.3°C

The warmest month (with the highest average high temperature) is July (6.1°C).
The month with the lowest average high temperature is February (-29.4°C).

  • Average low temperature in September: -11.5°C

The month with the highest average low temperature is July (0.7°C).
The coldest month (with the lowest average low temperature) is February (-37°C).

Average humidity in September - Alert, Canada
  • Average humidity in September: 84.6%

The month with the highest relative humidity is June (87.1%).
The month with the lowest relative humidity is February (66.6%).

Average rainfall in September - Alert, Canada
  • Average rainfall in September: 0.1mm

The wettest month (with the highest rainfall) is July (13mm).
Driest months (with the lowest rainfall) are January, February, March, April, May, October, November and December (0mm).

Average rainfall days in September - Alert, Canada
  • Average rainfall days in September: 0.2 days

The month with the highest number of rainy days is July (6.9 days).
Months with the lowest number of rainy days are January, February, March, April, October, November and December (0 days).

Average snowfall in September - Alert, Canada
  • Average snowfall in September: 331mm

The month with the highest snowfall is September (331mm).
The month with the lowest snowfall is February (81mm).

Average snowfall days in September - Alert, Canada
  • Average snowfall days in September: 11.3 days

The month with the highest number of snowfall days is October (12.2 days).
The month with the lowest number of snowfall days is July (6.3 days).

Average daylight in September / Average sunshine in September - Alert, Canada
  • Average daylight in September: 16.4h

Months with the longest days are May, June, July and August (Average daylight: 24h).
Months with shortest days are January, November and December (Average daylight: 0h).

  • Average sunshine in September: 3.7h

The month with most sunshine is May (Average sunshine: 13.8h).
Months with least sunshine are January, February, November and December (Average sunshine: 0).