Barometric Pressure in Old Lyme, United States

• Forecast Chart
• Hourly Trends

The pressure in Old Lyme, Connecticut, United States is predicted falling over the next 24 hours, with an average pressure of

1000.6

today, which is lower than normal.

Weather prediction: Rain at frequent intervals

The daily total fluctuation in pressure in Old Lyme is

1.8

, with a low of

999.8

and a high of

1001.6

.

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Forecast

Old Lyme has a humid continental climate with four clear seasons. Weather can change quickly because the town is near Long Island Sound. Rain and snow occur throughout the year, with somewhat wetter conditions in late spring and summer. Strong storms can bring heavy rain, coastal flooding, or high winds.

Air pressure affects the weather patterns. Areas of low pressure often bring clouds, rain, snow, and wind. Nor’easters can cause major winter storms along the coast. High pressure usually brings calmer, sunnier, and drier weather. In summer, warm, humid air often comes from the south. In winter, cold air can move down from Canada.

Long Island Sound helps moderate temperatures in Old Lyme. The water keeps the coast a little cooler in summer and warmer in winter than places farther inland. Sea breezes can lower afternoon temperatures near the shore. Inland forests, wetlands, rivers, and small hills also affect wind, fog, and rainfall.

Summers are warm and humid, with frequent showers and thunderstorms. Autumn brings cooler air, colorful leaves, and often many sunny days. Winters are cold, with a mix of snow, sleet, freezing rain, and rain. Snow amounts can vary because the coast is close to the warmer Sound. Spring is mild but changeable, with rain, cool days, and rising temperatures.