Weather Seasons

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El Ninos occur every two to seven years irregularly and tend to last for a single cycle. It is typical for these events to show signs of occurring during autumn, and then they strengthen over the winter and spring, with a drop off during the summer.

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  • When Does Hurricane Season Start?

    Q: When Does Hurricane Season Start?

    A: Geography dictates the start of hurricane season. Hurricane season in the Atlantic starts June 1. Hurricane season in the North Pacific begins May 15. According to the U.S. National Weather Service, 99 percent of all hurricanes occur within these periods.
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  • Is Sound Louder in Cold Weather?

    Q: Is Sound Louder in Cold Weather?

    A: Sound does not actually increase in amplitude, or loudness, in the cold. However, two factors come together and make people perceive sound as much louder in the cold: the cold itself and the snow that often comes with it.
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  • What Are the Months for Each Season?

    Q: What Are the Months for Each Season?

    A: In the Northern Hemisphere, spring covers March, April and May; summer covers June, July and August; fall covers September, October and November; and winter covers December, January and February. There are no official allocations of the four seasons, though, and in the Southern Hemisphere, the seasons are reversed. When it's summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and when it is spring in the Northern Hemisphere, it is fall in the Southern Hemisphere. Many countries south of the equator, however, tend to have more tropical climates in which the evolution of the seasons is less evident.
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  • Why Does It Hail in the Summer?

    Q: Why Does It Hail in the Summer?

    A: Hail occurs in the summer when strong thunderstorm updrafts carry raindrops high into the atmosphere, where temperatures are below freezing, according to the Atmospheric Sciences Department of Texas A&M University. This causes the water to freeze into pellets of ice, forming hailstones. These pellets may rise and fall multiple times in the storm before falling to the ground, resulting in hailstones of varying sizes.
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  • How Do Jet Streams Affect the Weather?

    Q: How Do Jet Streams Affect the Weather?

    A: Jet streams, which are rapidly moving ribbons of air 6 to 9 miles above the Earth, influence the weather by separating warm and cold air and pushing weather systems around the globe. The movement of a jet stream affects temperatures and precipitation. Meteorologists describe jet streams as resembling rivers in their flow.
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  • What Makes the Seasons Change?

    Q: What Makes the Seasons Change?

    A: The Earth experiences seasons because its axis is tilted, and as it rotates, sometimes a region is tilted towards the sun. In the northern hemisphere, when the Earth is closest to the sun, the region will experience winter, and when it is furthest away, it will experience summer.
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  • Q: How Does Weather Affect Everyday Lives?

    A: Weather affects the everyday lives of people by governing choices they make about what clothes to wear, how to travel, and the activities in which they participate. Weather also affects the moods of many people.
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  • Q: What Causes the Four Seasons on Earth?

    A: Earth's tilted spin axis causes the seasons, according to the National Weather Service. Earth spins on its axis and is tilted to its orbital plane while orbiting around the sun in an ellipse.
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  • Q: In Which Biome Is the Changing of Seasons Best Viewed?

    A: The changing of the seasons is best viewed in the temperate forest. This biome has deciduous trees with leaves that change color in autumn and fall to the ground during winter.
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  • Q: What Are Some of the Climate Conditions That Can Be Found in Mexico?

    A: The climate in Mexico ranges from desert-like to hot and humid, and the country is divided into tropical and temperate zones by the Tropic of Cancer. The type of climate found in the 742,490-square-mile nation has much to do with the altitude of the region. Mexico City, at an altitude of more than 1 mile above sea level, has a moderate climate with pleasant summers, while many of the low-lying regions along the country's 5,800-mile coastline have hot and humid tropical climates.
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  • Q: In What Season Do Tsunamis Occur?

    A: Since tsunamis are not affected by the seasons, they can occur at any time. Tsunamis are caused by things like volcanic eruptions, earthquakes and meteor impacts and have nothing to do with the different seasons.
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  • Q: When Does Hurricane Season Start in Mexico?

    A: On the Pacific coast of Mexico, hurricane season begins May 15. Along Mexico's Atlantic coastline, hurricane season begins on June 1. On both coasts, the official hurricane season ends on November 30.
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  • Q: What Is the Exact Time of the Winter Solstice?

    A: As of 2015, the United States will experience the December, or winter, solstice on Tuesday, Dec. 21, at 11:49 pm Eastern Standard Time. The December solstice usually occurs between Dec. 20 and Dec. 23.
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  • Q: What Is the Weather Like in Spring?

    A: The weather during the season of spring varies depending on location, but it is usually marked by an increase in temperature and rain. In areas that receive snow during winter, the snow begins to melt. This can lead to flooding of waterways.
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  • Q: What Are Some Catchy Fall Phrases for a Preschool Class?

    A: Catchy fall phrases for a preschool class for use with activities or above wall decorations are "fall into learning," "A is for autumn" and "jump into fall." Other phrases like "autumn leaves are falling down" and "hi-ho, hi-ho, it's off to rake we go" can be sung.
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  • Q: What's the Best Time and Place to See Fall Colors in Illinois?

    A: The best time to view fall colors in Illinois is from the middle of October through early November. The Illinois River Road National Scenic Byway offers excellent views of the fall foliage with a scenic 291-mile loop that follows both shores of the Illinois River.
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  • Q: What Are the Properties of Earth That Cause Seasons?

    A: The tilt of Earth’s axis and the position on its orbit around the sun due to the rotation on the axis are the properties that cause seasons, according to the National Weather Service. Seasons are opposite one another on the Northern Hemisphere and Southern Hemisphere.
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  • Q: Why Do Monsoons Happen?

    A: Monsoons occur because of seasonal shifts in wind patterns; they create wet and dry seasons in areas where prevailing winds change throughout the course of the year, creating stagnant wind and weather patterns. Monsoons, like other weather patterns, draw influence from temperature and atmospheric conditions. Their formation takes long periods of time, as monsoons gradually accrue moisture and density, developing large clouds that produce large volumes of rainfall.
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  • Q: How Often Does Jamaica Have Hurricanes?

    A: Researchers at Florida State University found that Jamaica experienced landfalls of the eye of a hurricane 12 times between 1886-1995, an average of once every nine years. Jamaica was threatened by hurricanes 80 times during the same period.
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  • Q: Why Are the Seasons Reversed in the Southern Hemisphere?

    A: The seasons are reversed in the Southern Hemisphere because when the Northern Hemisphere is tilted toward the sun, the Southern Hemisphere is tilted away from it. Thus, when the Northern Hemisphere is receiving more direct sunlight and undergoing summer, the Southern Hemisphere is deep in the cold of winter.
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  • Q: What Is the Climate of North America?

    A: The North American continent encompasses several different climates, but most of the continent experiences a temperate climate. Parts of California experience a desert climate, Northern Canada has a polar climate and some of the Californian coast experiences a Mediterranean climate.
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