Weather in Markham in May
In an average May, Markham sees a daily high around 13°C and a low around 8°C, based on 1980–2026 of local climate records.
| Average high | 13°C |
|---|---|
| Typical high range | 9°C to 17°C |
| Average low | 8°C |
| Typical low range | 4°C to 11°C |
| Average daily precipitation | 3 mm |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
27°C
2026-05-18
Lowest
5°C
2004-05-03
Low
Highest
21°C
2012-05-29
Lowest
-2°C
2026-05-03
Feels-like
Highest
30°C
2026-05-18
Lowest
-8°C
2026-05-03
Humidity
Highest
15.7 g/m³
2026-05-19
Lowest
3.3 g/m³
1986-05-03
Wind
Highest
54 km/h
2018-05-04
Lowest
8 km/h
2023-05-06
Gust
Highest
88 km/h
2018-05-04
Lowest
14 km/h
2015-05-07
Precip
Wettest
184 mm
2017
Driest
27 mm
2005
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