Thermograph

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

Weather in Markham in June

In an average June, Markham sees a daily high around 19°C and a low around 14°C, based on 1980–2026 of local climate records.

Average high19°C
Typical high range16°C to 23°C
Average low14°C
Typical low range11°C to 17°C
Average daily precipitation3 mm

June records

The most extreme June on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total June accumulation.

High

Highest 31°C 2026-06-30
Lowest 10°C 1992-06-21

Low

Highest 23°C 2012-06-29
Lowest 6°C 1980-06-10

Feels-like

Highest 42°C 2026-06-30
Lowest 1°C 1980-06-09

Humidity

Highest 18.5 g/m³ 2026-06-11
Lowest 5.3 g/m³ 1988-06-09

Wind

Highest 48 km/h 1980-06-20
Lowest 7 km/h 1992-06-07

Gust

Highest 77 km/h 1980-06-20
Lowest 13 km/h 1983-06-14

Precip

Wettest 160 mm 1996
Driest 29 mm 2007

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