Barometric Pressure in Pasadena, United States 
1013 hPa
15.0 ℃
50%
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Pasadena hour by hour across the next 6 hourly readings.
Pasadena has a humid subtropical climate. Summers are long, hot, and humid, with many thunderstorms. Rain can fall at any time of year, but heavy rain is more common from spring through early fall. Tropical storms and hurricanes from the Gulf of Mexico can bring strong winds, flooding, and very heavy rain.
Warm, moist air from the Gulf often moves over the area. Low pressure can make the air rise, leading to clouds, thunderstorms, and heavy rain. High pressure usually brings clearer skies and calmer weather. In winter, cold fronts can move down from the north and cause sudden changes in temperature, strong winds, and short periods of rain.
Pasadena lies on a flat coastal plain near Galveston Bay and the Gulf of Mexico. This location brings plenty of moisture and keeps winters fairly mild. The flat land can also allow water to collect during heavy rain. Summers are usually the hottest season, while winters are cooler but rarely very cold. Spring and fall bring changing temperatures and frequent storms.