Barometric Pressure in Ajax, Canada 
1012 hPa
16.3 ℃
72%
2.77 m/s
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The average pressure in Ajax, Ontario, Canada today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at times, very unsettled
The daily total fluctuation in pressure in Ajax is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Ajax hour by hour across the next 6 hourly readings.
Ajax, Ontario has a humid continental climate. Air pressure changes here are linked to weather patterns. High pressure brings clear skies and low pressure brings rain or snow.
Ajax's geography, near Lake Ontario and at a low elevation, affects air pressure. The lake helps regulate temperature, keeping it steady.
In winter, high pressure dominates, bringing cold and snow. Low pressure systems move in, bringing warmer air and rain.
In summer, low pressure systems bring thunderstorms. High pressure returns, bringing hot and sunny days.
Ajax's climate type means big air pressure changes between seasons. This results in varied weather, from cold and snowy to warm and humid.