Hamilton, Canada Climate by Month
Hamilton, Ontario, Canada
Warm summers and freezing winters, with rain spread through the year.
Warm summers and freezing winters, with rain spread through the year: that's Hamilton's climate in short. July is the warmest month, with highs around 81°F (27°C); January is the coolest at 32°F (0°C), and nights dip to 19°F (-7°C). About 34 in (870 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 81°F(27°C)
- Average high, July
- Coldest nights
- 19°F(-7°C)
- Average low, January
- Rain per year
- 34 in(870 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: June
Best and worst months in Hamilton
Best for weatherJune and September are the best time for weather in Hamilton: highs near 74°F (24°C) and about 3.1 in (78 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 32°F (0°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)
Hamilton weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 19°F(-7°C) | 2.6 in(66 mm) | 85% | 1.4 |
| FebFebruary | 33°F(1°C) | 20°F(-7°C) | 2.4 in(60 mm) | 83% | 2.4 |
| MarMarch | 41°F(5°C) | 27°F(-3°C) | 2.2 in(55 mm) | 75% | 3.4 |
| AprApril | 53°F(12°C) | 37°F(3°C) | 3.1 in(78 mm) | 69% | 4.4 |
| MayMay | 66°F(19°C) | 47°F(9°C) | 3.3 in(83 mm) | 70% | 5.4 |
| JunJuneBest | 76°F(25°C) | 58°F(14°C) | 3.0 in(77 mm) | 71% | 5.9 |
| JulJuly | 81°F(27°C) | 63°F(17°C) | 3.1 in(78 mm) | 71% | 5.9 |
| AugAugust | 80°F(26°C) | 62°F(17°C) | 3.1 in(78 mm) | 74% | 5.2 |
| SepSeptemberBest | 73°F(23°C) | 56°F(13°C) | 3.1 in(78 mm) | 73% | 4.1 |
| OctOctober | 60°F(15°C) | 45°F(7°C) | 2.9 in(74 mm) | 75% | 2.4 |
| NovNovember | 48°F(9°C) | 35°F(2°C) | 3.1 in(78 mm) | 79% | 1.5 |
| DecDecember | 37°F(3°C) | 27°F(-3°C) | 2.6 in(65 mm) | 82% | 1.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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