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
As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 22.4°C (72.3°F) to a comfortable 17.3°C (63.1°F). September witnesses an average nighttime temperature of 6.6°C (43.9°F).Humidity
In Onoway, the average relative humidity in September is 65%.Rainfall
In Onoway, in September, during 9.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Onoway, during the entire year, the rain falls for 108 days and collects up to 338mm (13.31") of precipitation.Snowfall
January through June, September through December are months with snowfall in Onoway. September is the first month it typically snows in Onoway. Throughout September, in the average 1.2 snowfall days, it receives 18mm (0.71") of snow. Throughout the year, in Onoway, there are 72.7 snowfall days, and 539mm (21.22") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:25 pm. On the last day of September, in Onoway, sunrise is at 7:38 am and sunset at 7:14 pm MDT.
Sunshine
In Onoway, Canada, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Onoway is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Onoway in September?
What is the average humidity in September in Onoway?
How many days does it rain in September in Onoway?
When does it start to snow in Onoway?
How many hours of daylight does Onoway have in September?
When is the sunrise / sunset in September in Onoway?
How many hours of sunshine does Onoway have in September?
What is the UV index intensity in September in Onoway?
Average temperature in September
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
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
Onoway, 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
Onoway, 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
Onoway, 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
Onoway, 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).
Onoway, Canada
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