Weather in Markham, Ontario, Canada in June
In an average June, Markham sees a daily high around 24°C and a low around 12°C, based on 1981–2026 of local climate records.
| Average high | 24°C |
|---|---|
| Typical high range | 19°C to 29°C |
| Average low | 12°C |
| Typical low range | 8°C to 17°C |
| Average daily precipitation | 3 mm |
June records
The most extreme June on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total June accumulation.
High
Highest
36°C
1995-06-19
Lowest
11°C
1992-06-21
Low
Highest
22°C
2025-06-22
Lowest
2°C
1983-06-08
Feels-like
Highest
46°C
1995-06-19
Lowest
-3°C
1983-06-08
Humidity
Highest
19.2 g/m³
2005-06-13
Lowest
5.0 g/m³
1986-06-03
Wind
Highest
49 km/h
1988-06-25
Lowest
8 km/h
2025-06-15
Precip
Wettest
142 mm
2000
Driest
17 mm
1988
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