Barometric Pressure in Whitby, Canada 
1016.5 hPa
18.8 ℃
64%
4.47 m/s
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The average pressure in Whitby, 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 Whitby is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Whitby hour by hour across the next 6 hourly readings.
Whitby's proximity to Lake Ontario causes lake-effect weather, which changes air pressure. The lake warms or cools the air, making pressure rise or fall.
Whitby's low elevation near the lake means air pressure is often lower than in nearby areas. This leads to more unstable air, causing changing weather.
In winter, cold air from the north brings low pressure, making Whitby cold and snowy. Spring brings rising pressure as warmer air arrives, making it milder.
Summer has high pressure, making Whitby warm and sunny. Autumn's declining pressure brings cooler, rainier weather. Whitby has a humid continental climate, meaning big temperature and pressure changes between seasons.