Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September involves a temperature drop, moving from a pleasant 22.4°C (72.3°F) in August to an enjoyable 17.3°C (63.1°F). The average low-temperature of 6.6°C (43.9°F) is witnessed in Westlock during September.Humidity
In September, the average relative humidity is 65%.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, in Westlock, there are 108 rainfall days, and 338mm (13.31") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 18mm (0.71") of snow. In Westlock, during the entire year, snow falls for 72.7 days and aggregates up to 539mm (21.22") of snow.Daylight
In Westlock, the average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:45 am and sunset at 8:25 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:13 pm MDT.
Sunshine
In September, the average sunshine is 8.5h.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 average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What is the average September temperature in Westlock?
What is the average humidity in September in Westlock?
How much does it rain in Westlock in September?
When does it start snowing in Westlock?
What is the average length of the day in September in Westlock?
When are sunrise and sunset in September in Westlock?
How many hours of sunshine does Westlock have in September?
What is the UV index intensity in September in Westlock?
Average temperature in September
Westlock, Canada
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is December (-7.3°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).
Average pressure in September
Westlock, Canada
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1010.2mbar).
Average wind speed in September
Westlock, Canada
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is April (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Westlock, Canada
- Average humidity in September: 65%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is May (60%).
Average rainfall in September
Westlock, Canada
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Westlock, Canada
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Westlock, Canada
- Average snowfall in September: 18mm
The month with the highest snowfall is November (90mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Westlock, Canada
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Westlock, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Westlock, Canada
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in September
Westlock, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).
Average cloud cover in September
Westlock, Canada
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Westlock, Canada
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and March (7km).
Westlock, Canada
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