Barometric Pressure in Livermore-Pleasanton, United States

• Forecast Chart
• Hourly Trends

The pressure in Livermore-Pleasanton, California, United States is predicted steady over the next 24 hours, with an average pressure of

1012.5

today, which is considered normal.

Weather prediction: Fairly fine, showers likely

The daily total fluctuation in pressure in Livermore-Pleasanton is

1.8

, with a low of

1011.7

and a high of

1013.5

.

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Forecast

Livermore and Pleasanton have a Mediterranean climate. Summers are hot, sunny, and very dry. Winters are mild, with most of the yearly rain falling from November through March. Snow is very rare in the valley.

High pressure often sits over the Pacific Ocean in summer. It blocks storms and keeps the sky clear. In winter, low pressure systems can move in from the Pacific. These storms bring clouds, wind, and rain. Air pressure can also change quickly when a storm arrives or leaves.

The area lies in inland valleys between the Diablo Range and other coastal hills. These hills block much of the cool, damp air from the San Francisco Bay. As a result, Livermore and Pleasanton are usually warmer and drier than areas closer to the coast. The hills can also trap cool air at night, causing chilly mornings and occasional fog.

Temperatures often change a lot between day and night. Summer days may be very hot, but evenings can cool quickly. Spring and fall have comfortable days with changing temperatures. Winter days are cool to mild, while nights can be cold, especially in Livermore Valley.