September weather forecastArelee, Canada

September

Weather in September

September, the first month of the autumn in Arelee, is still a refreshing month, with an average temperature varying between 19°C (66.2°F) and 9°C (48.2°F).

Temperature

September's onset corresponds with a shift in the average high-temperature, moving from a warm 24.6°C (76.3°F) in August to an enjoyable 19°C (66.2°F). In the month of September, the temperature generally rests at an average low of 9°C (48.2°F).

Humidity

In September, the average relative humidity is 57%.

Rainfall

In September, in Arelee, Canada, the rain falls for 7.1 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, in Arelee, there are 87.4 rainfall days, and 273mm (10.75") of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, in Arelee, there are 72.4 snowfall days, and 466mm (18.35") of snow is accumulated.

Daylight

In Arelee, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:56 pm. On the last day of September, in Arelee, sunrise is at 7:10 am and sunset at 6:48 pm CST.

Sunshine

The average sunshine in September in Arelee is 8.3h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 3 in September translates into these instructions:
Guard yourself - Avoiding sunburn is suggested. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

An average high-temperature, in September, in Arelee, is 19°C (66.2°F) and the average low-temperature is 9°C (48.2°F).

In Arelee, Canada, the average relative humidity in September is 57%.

In Arelee, Canada, in September, during 7.1 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 8mm (0.31") of snow.

In September, the average day length is 12h and 38min.

On the first day of September, sunrise is at 6:22 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:48 pm CST.

In Arelee, Canada, the average sunshine duration in September is 8.3h.

In Arelee, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Arelee, Canada

  • Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is February (-9.4°C).

  • Average low temperature in September: 9°C

The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is February (-17.8°C).

Average pressure in September
Arelee, Canada

  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is February (1021.4mbar).
The month with the lowest atmospheric pressure is June (1009.8mbar).

Average wind speed in September
Arelee, Canada

  • Average wind speed in September: 13.7km/h

The windiest month (with the highest average wind speed) is April (15.5km/h).
The calmest month (with the lowest average wind speed) is August (12.8km/h).

Average humidity in September
Arelee, Canada

  • Average humidity in September: 57%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (55%).

Average rainfall in September
Arelee, Canada

  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is June (55mm).
The driest month (with the least rainfall) is December (7mm).

Average rainfall days in September
Arelee, Canada

  • Average rainfall days in September: 7.1 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in September
Arelee, Canada

  • Average snowfall in September: 8mm

The month with the highest snowfall is March (78mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in September
Arelee, Canada

  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Arelee, Canada

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is July (Average sunshine: 12h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in September
Arelee, Canada

  • Average sunshine days in September: 21.2 days

The month with the most sunshine days is December (21.4 days).
The month with the least sunshine days is June (13.1 days).

Average UV index in September
Arelee, Canada

  • Average UV index in September: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in September
Arelee, Canada

  • Average cloud cover in September: 30

The months with the most cloud cover are February and March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Arelee, Canada

  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and February (7km).