Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Weather in Toronto, Ontario, Canada in September

In an average September, Toronto sees a daily high around 20°C and a low around 14°C, based on 1981–2026 of local climate records.

Average high20°C
Typical high range16°C to 25°C
Average low14°C
Typical low range9°C to 18°C
Average daily precipitation3 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 31°C 2017-09-23
Lowest 9°C 1993-09-29

Low

Highest 23°C 2016-09-08
Lowest 2°C 1993-09-30

Feels-like

Highest 36°C 2017-09-23
Lowest -3°C 1993-09-30

Humidity

Highest 20.5 g/m³ 2016-09-07
Lowest 4.4 g/m³ 1989-09-27

Wind

Highest 60 km/h 2008-09-14
Lowest 6 km/h 2014-09-28

Precip

Wettest 154 mm 1986
Driest 18 mm 2023

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