September weather forecast and climate
Halton Hills, Canada

The first month of the autumn, September, is still a pleasant month in Halton Hills, Canada, with average temperature ranging between max 21.4°C (70.5°F) and min 8.1°C (46.6°F).

Temperature

In September, the average high-temperature marginally drops, from a warm 25.8°C (78.4°F) in August, to an agreeable 21.4°C (70.5°F). In Halton Hills, in September, the average low-temperature is 8.1°C (46.6°F).

Rainfall

The month with the most rainfall is September when the rain falls for 11.7 days and typically aggregates up to 86.2mm (3.39") of precipitation.

Snowfall

In Halton Hills, Canada, snow does not fall in June through September.

Daylight

In September, the average length of the day in Halton Hills, Canada, is 12.5h.

What is the temperature in September in Halton Hills?

In Halton Hills, in September, the average high-temperature is 21.4°C (70.5°F), and the average low-temperature is 8.1°C (46.6°F).

How many days does it rain in September in Halton Hills?

In September, in Halton Hills, Canada, the rain falls for 11.7 days. Throughout September, 86.2mm (3.39") of precipitation is accumulated.

What is the rainiest month in Halton Hills?

September is the month with the most rainfall. Rain falls for 11.7 days and accumulates 86.2mm (3.39") of precipitation.

Does it snow in Halton Hills in September?

In Halton Hills, Canada, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Halton Hills?

In Halton Hills, Canada, snow does not fall in June through September.

What is the average length of the day in September in Halton Hills?

The average length of the day in September in Halton Hills, Canada, is 12.5h.
Average temperature in September - Halton Hills, Canada
  • Average high temperature in September: 21.4°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 (-1.7°C).

  • Average low temperature in September: 8.1°C

The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).

Average rainfall in September - Halton Hills, Canada
  • Average rainfall in September: 86.2mm

The wettest month (with the highest rainfall) is September (86.2mm).
The driest month (with the least rainfall) is February (28.4mm).

Average rainfall days in September - Halton Hills, Canada
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is October (12.2 days).
Months with the least rainy days are January and February (4.1 days).

Average snowfall in September - Halton Hills, Canada
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (381mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Halton Hills, Canada
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.4 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September - Halton Hills, Canada
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).