Calgary Weather in September
In September, Calgary averages a high of 17°C (63°F) and a low of 4°C (39°F), based on 41 years of historical weather data from CALGARY GLENMORE DAM.
17°C
Average high
63°F
4°C
Average low
39°F
33°C
Record high
92°F · 2009
-9°C
Record low
16°F · 1985
What to Expect in Calgary in September
Typical September days in Calgary reach 17°C (63°F) during the afternoon and cool to around 4°C (39°F) overnight. On average, measurable rain falls on about 30% of days this month. Over the past 41 years, September temperatures in Calgary have ranged from a record high of 33°C (2009) down to a record low of -9°C (1985).
For a day-by-day look or other months, see the full Calgary weather history.