September weather forecast
Chestermere, Canada

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Weather in September

The first month of the autumn, September, is still a refreshing month in Chestermere, Canada, with an average temperature varying between 18°C (64.4°F) and 6.5°C (43.7°F).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from an agreeable 22.9°C (73.2°F) in August to a refreshing 18°C (64.4°F). Chestermere observes an average nighttime temperature of 6.5°C (43.7°F) during September.

Humidity

With an average relative humidity of 59%, September is the least humid month.

Rainfall

In Chestermere, in September, it is raining for 7.8 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, there are 94.1 rainfall days, and 288mm (11.34") of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Chestermere. September is the first month it typically snows. Throughout September, in the average 1.5 snowfall days, it receives 29mm (1.14") of snow. In Chestermere, Canada, during the entire year, snow falls for 75.3 days and aggregates up to 629mm (24.76") of snow.

Daylight

In September, the average length of the day is 12h and 37min.
On the first day of September in Chestermere, Canada, sunrise is at 6:50 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:14 pm MDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September in Chestermere is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 3 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the average September temperature in Chestermere?

The average high-temperature and low-temperature during September are 18°C (64.4°F) and 6.5°C (43.7°F) respectively.

What is the least humid month in Chestermere?

With an average relative humidity of 59%, September is the least humid month in Chestermere.

What is the average humidity in September in Chestermere?

In September, the average relative humidity in Chestermere, Canada, is 59%.

How many days does it rain in September in Chestermere?

In Chestermere, Canada, during September, the rain falls for 7.8 days and regularly aggregates up to 16mm (0.63") of precipitation.

When does it start snowing in Chestermere?

September is the first month it typically snows. Throughout September, in the average 1.5 snowfall days, it receives 29mm (1.14") of snow.

How many hours of daylight does Chestermere have in September?

In September, the average day length in Chestermere, Canada, is 12h and 37min.

What time are sunrise and sunset in September in Chestermere?

On the first day of September in Chestermere, sunrise is at 6:50 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:14 pm MDT.

How long on average sun shines in September in Chestermere?

The average sunshine duration in September in Chestermere, Canada, is 8.8h.

What is the UV index reading in September in Chestermere?

The average daily maximum UV index in September in Chestermere is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Chestermere, Canada

Average temperature in September - Chestermere, Canada
  • Average high temperature in September: 18°C

The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is December (-4.8°C).

  • Average low temperature in September: 6.5°C

The month with the highest average low temperature is July (10°C).
The coldest month (with the lowest average low temperature) is December (-11.5°C).

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Average pressure in September
Chestermere, Canada

Average pressure in September - Chestermere, Canada
  • Average pressure in September: 1013.8mbar

The month with the highest atmospheric pressure is February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010.8mbar).

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Average wind speed in September
Chestermere, Canada

Average wind speed in September - Chestermere, Canada
  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is January (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

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Average humidity in September
Chestermere, Canada

Average humidity in September - Chestermere, Canada
  • Average humidity in September: 59%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is September (59%).

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Average rainfall in September
Chestermere, Canada

Average rainfall in September - Chestermere, Canada
  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is January (9mm).

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Average rainfall days in September
Chestermere, Canada

Average rainfall days in September - Chestermere, Canada
  • Average rainfall days in September: 7.8 days

The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is November (2.5 days).

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Average snowfall in September
Chestermere, Canada

Average snowfall in September - Chestermere, Canada
  • Average snowfall in September: 29mm

The month with the highest snowfall is April (102mm).
The months with the least snowfall are July and August (0mm).

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Average snowfall days in September
Chestermere, Canada

Average snowfall days in September - Chestermere, Canada
  • Average snowfall days in September: 1.5 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in September / Average sunshine in September - Chestermere, Canada
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Chestermere, Canada

Average sunshine days in September - Chestermere, Canada
  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in September
Chestermere, Canada

Average UV index in September - Chestermere, Canada
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Chestermere, Canada

Average cloud cover in September - Chestermere, Canada
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in September
Chestermere, Canada

Average visibility in September - Chestermere, Canada
  • Average visibility in September: 10km

The months with the highest visibility are June, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, July, October, November and December (9km).

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Chestermere, Canada

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