September weather forecastVaughan, Canada
September
Weather in September
As soon as September hits in Vaughn, Ontario, there's a noticeable chill in the air. The shift in atmospheric conditions announces the arrival of autumn. Temperatures drop from 25.4°C (77.7°F) in August to a milder 20.9°C (69.6°F). Despite the overall change, the weather is frequently dry and comfortable. The landscape starts to change color, making this month photogenic for visitors and locals.Temperature
September in Vaughan is characterized by a mild reduction in the average high-temperature, from a warm 25.4°C (77.7°F) in August to an agreeable 20.9°C (69.6°F). Throughout September nights, Vaughan registers an average low-temperature of 9.8°C (49.6°F).Rainfall
The month with the most rainfall is September, when the rain falls for 10.6 days and typically aggregates up to 85mm (3.35") of precipitation.Snowfall
In Vaughan, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:00 pm EDT.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vaughan, Canada
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is July (26.9°C).
The month with the lowest average high temperature is January (-2.5°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average rainfall in September
Vaughan, Canada
- Average rainfall in September: 84.6mm
The wettest month (with the highest rainfall) is September (84.6mm).
The driest month (with the least rainfall) is January (20.4mm).
Average rainfall days in September
Vaughan, Canada
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is October (12.6 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in September
Vaughan, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (299mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Vaughan, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September
Vaughan, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).





