Weather Seasons

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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Q: What is the difference between a tropical wet and dry climate?

    A: Tropical wet climates receive much more rain than tropical dry climates do. However, the term “tropical wet and dry climate” actually refers to a single type of climate. Tropical dry climates occur in deserts, while tropical wet climates usually occur along the rainforest belt. Tropical wet and dry climates have a distinct dry season and a distinct wet season, which produces a Savanna habitat.
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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: When do the seasons start and finish?

    A: Seasons start and finish with the equinoxes and the solstices. For example, summer begins with the summer solstice, which occurs in the northern hemisphere at around June 21. During the summer solstice, the hours of daylight are greater than the hours of darkness.
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  • Q: When is hurricane season in the Bahamas?

    A: Hurricane season in the Bahamas officially begins on June 1st each year and runs to November 30th. According to the Embassy of the United States, the peak season usually occurs in August, September and early October.
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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: What state gets the most snow?

    A: According to USA.com, the state that receives the most snow on average is Vermont. Vermont has an average snow rating of 89.25 inches per year.
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  • Q: How did El Nino get its name?

    A: The climate phenomenon "El Niño" was named by fishermen off the Pacific coast of South America who noticed occurrences of unusually warm water. Because El Niño-Southern Oscillation occurred around Christmastime, the fisherman named the condition "El Niño" as a reference to Jesus.
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  • Q: When is the rainy season in Aruba?

    A: According to Frommer's, there is no true rainy season in Aruba like there is at more lush vacation spots, such as Costa Rica. Aruba averages only 18 inches of rainfall a year, and while most of it does fall between October and January, showers are often brief and sporadic.
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  • Q: When is hurricane season in the Caribbean?

    A: The Caribbean hurricane season follows the traditional Atlantic season, which officially lasts between the start of June and the end of November. The average hurricane season in the Atlantic region typically generates between five to seven hurricane storms with a concentrated peak around September.
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  • Q: How cold does it have to be to snow?

    A: In order for snow to form, the atmospheric temperature must be 32 degrees Fahrenheit or below. If the temperature increases too much as the snow falls, it turns into sleet or rain. As long as the ground temperature is at 41 degrees Fahrenheit or below, the snow should eventually stick.
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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: What time of year do droughts occur?

    A: Droughts can occur at any time during the year. A drought is usually determined by the lack of precipitation that falls during a period of time, but it can take a long time for its effects to be noticed.
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  • Q: What is a climate map of Africa?

    A: A climate map of Africa is a map showing climate zones of Africa. The continent has a variety of climate zones ranging from tropical to subarctic on the continent’s highest peaks.
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  • Q: Where do heat waves occur in the world?

    A: Heat waves can occur in almost any country around the world, including the United States, Denmark, Russia, Australia and England. A heat wave is defined as a period of above-average high temperatures, sometimes accompanied by high humidity. While the United States routinely has heat waves during the summer, they are less common in Russia and Denmark.
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  • Q: What are the differences between spring and autumn?

    A: The differences between spring and autumn include temperature, time of year and length of day. Spring is the season that happens after winter, while autumn is the season that happens after summer. The physical appearance of spring and autumn are different as well, as trees bloom in spring and turn in autumn.
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