Richmond Hill Climate by Month
Richmond Hill, Ontario, Canada
Warm summers and freezing winters, with rain spread through the year.
The climate in Richmond Hill is one of warm summers and freezing winters, with rain spread through the year. July is the warmest month, with highs around 80°F (27°C); January is the coolest at 28°F (-2°C), and nights dip to 15°F (-9°C). About 34 in (855 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 79% relative humidity.
- Warmest month
- 80°F(27°C)
- Average high, July
- Coldest nights
- 15°F(-9°C)
- Average low, January
- Rain per year
- 34 in(855 mm)
- No clear rainy season
- Humidity
- 79%
- Sunniest: July
Best and worst months in Richmond Hill
Best for weatherJune and August are the best time for weather in Richmond Hill: highs near 76°F (25°C) and about 3.2 in (82 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 28°F (-2°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Richmond Hill weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 28°F(-2°C) | 15°F(-9°C) | 2.4 in(62 mm) | 100% | 1.4 |
| FebFebruary | 30°F(-1°C) | 16°F(-9°C) | 2.2 in(56 mm) | 96% | 2.3 |
| MarMarch | 39°F(4°C) | 24°F(-4°C) | 2.0 in(52 mm) | 67% | 3.4 |
| AprApril | 51°F(11°C) | 34°F(1°C) | 3.1 in(78 mm) | 64% | 4.4 |
| MayMay | 65°F(18°C) | 46°F(8°C) | 3.2 in(81 mm) | 67% | 5.4 |
| JunJuneBest | 74°F(24°C) | 56°F(13°C) | 3.3 in(83 mm) | 71% | 5.8 |
| JulJuly | 80°F(27°C) | 61°F(16°C) | 3.1 in(80 mm) | 71% | 5.9 |
| AugAugustBest | 78°F(26°C) | 60°F(16°C) | 3.1 in(80 mm) | 74% | 5.2 |
| SepSeptember | 71°F(22°C) | 53°F(12°C) | 3.0 in(76 mm) | 78% | 4.0 |
| OctOctober | 58°F(14°C) | 42°F(6°C) | 2.9 in(74 mm) | 81% | 2.3 |
| NovNovember | 46°F(8°C) | 33°F(0°C) | 2.9 in(73 mm) | 87% | 1.4 |
| DecDecember | 35°F(1°C) | 23°F(-5°C) | 2.4 in(60 mm) | 93% | 1.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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