Weather in Longueuil, Quebec, Canada in September
In an average September, Longueuil sees a daily high around 22°C and a low around 11°C, based on 1981–2026 of local climate records.
| Average high | 22°C |
|---|---|
| Typical high range | 17°C to 28°C |
| Average low | 11°C |
| Typical low range | 6°C to 16°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
34°C
2002-09-09
Lowest
7°C
1992-09-30
Low
Highest
23°C
2010-09-02
Lowest
-2°C
1991-09-30
Feels-like
Highest
47°C
2010-09-03
Lowest
-7°C
1991-09-30
Humidity
Highest
20.8 g/m³
2018-09-03
Lowest
4.1 g/m³
2000-09-28
Wind
Highest
57 km/h
2005-09-29
Lowest
7 km/h
2004-09-30
Precip
Wettest
168 mm
2010
Driest
27 mm
2023
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