When visiting Hamilton, make sure you wear layers of clothing,
which can prepare you for whatever part of the city you’re
in: Hamilton’s climate of the lower city (downtown) is in
general much more sheltered and milder than on top of "the
mountain".
Overall, though, Hamilton has a humid continental climate, one
which is relatively mild compared with most of Canada. The average
January temperature is -3.6C (26.5F) but most days rise just above
freezing making for slushy conditions during snowfalls. Winter
snowfall averages 113cm (44") with great year-to-year variation.
The average July temperature is 22.5C (72.5F) and humidity is
usually high during the summer, May through early October.
In the winter, it is not uncommon for lower city residents, with
no snow present in their neighborhoods, to drive up into the upper
city and be surprised at encountering a thick blanket of fresh
white snow. The escarpment also affects summer weather; temperatures
downtown are many degrees warmer, particularly at night, and often
an inversion will combine with the physical barrier of the escarpment
to trap smog in the downtown area, sometimes reducing downtown
visibility to less than 2km.
Hamilton Weather Forecast
|
5 Day Weather Forecast
|
| Saturday night | Sunday | Sunday night |
 | Cloudy Low -8°C |
|
 | A mix of sun and cloud High -2°C |
|
 | Cloudy periods High -2°C |
|
| Monday | Tuesday | Wednesday |
 | Chance of flurries High -2°C |
|
 | Sunny High -5°C |
|
 | A mix of sun and cloud High -5°C |
|
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| |
Detailed Hamilton Weather Forecast
|
| Hamilton Munro Int'l Airport 9:00 PM EST Saturday 19 December 2009 |
| Saturday night | Cloudy. Wind northeast 30 km/h becoming light late this evening. Low minus 8. |
| Sunday | Cloudy with sunny periods. Becoming sunny with cloudy periods in the morning. High minus 2. |
| Sunday night | Cloudy periods. Low minus 8. |
| Monday | Cloudy with 60 percent chance of flurries. High minus 2. |
| Tuesday | Sunny. Low minus 10. High minus 5. |
| Wednesday | A mix of sun and cloud. Low minus 12. High minus 5. |
|
| |