Richmond Hill, Ontario, Canada climate
Average temperatures, precipitation and all-time records for Richmond Hill, Ontario, Canada, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 27°C, and its coldest is January, with an average low of -9°C.
Richmond Hill is a city in south-central York Region, Ontario, Canada. Part of the Greater Toronto Area, it is the York Region's third most populous municipality and the 27th most populous municipality in Canada. via Wikipedia
Richmond Hill average temperatures by month
Typical daily high and low, and average precipitation, for each month in Richmond Hill, Ontario, Canada, based on 1980–2026 records. The wettest month is January (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | -1°C | -9°C | 3 mm |
| February | 0°C | -8°C | 3 mm |
| March | 5°C | -4°C | 3 mm |
| April | 12°C | 3°C | 3 mm |
| May | 18°C | 8°C | 3 mm |
| June | 23°C | 14°C | 3 mm |
| July | 27°C | 17°C | 3 mm |
| August | 26°C | 16°C | 3 mm |
| September | 22°C | 13°C | 3 mm |
| October | 15°C | 7°C | 3 mm |
| November | 8°C | 1°C | 3 mm |
| December | 2°C | -5°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 37°C on 2011-07-21
- Coldest day on record: -30°C on 1980-12-25
Percentiles compare each day to Richmond Hill, Ontario, Canada's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →