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What day does offical summer start on?

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What day does offical summer start on?

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  1. june 21


  2. The start of summer is determined by the position of the sun as the earth orbits around the sun.  In the northern hemisphere, in the year 2008, summer will start at the time of the Northern Solstice  on June 20 at 23:59 UTC (Coordinated Universal Time).

    June 21 is the nominal start of summer but precise beginning is determined by the Astronomers and their knowledge of Earth/Sun orbits.

  3. SOLSTICE

    SUMMER SOLSTICE: The first day of the Season of Summer. On this day (JUNE 20 or 21 in the northern hemisphere*) the Sun is farthest north and the length of time between Sunrise and Sunset is the longest of the year.

    WINTER SOLSTICE: The first day of the Season of Winter. On this day (DECEMBER 21 or 22 in the northern hemisphere*) the Sun is farthest south and the length of time between Sunrise and Sunset is the shortest of the year.

    * In the southern hemisphere, winter and summer solstices are exchanged. Summer: December 22. Winter: June 21.

    EQUINOX

    Two times of the year when night and day are about the same length. The Sun is crossing the Equator (an imaginary line around the middle of the Earth) and it is an equal distance from the North Pole and the South Pole.

    SPRING EQUINOX: The first day of the Season of Spring - and the beginning of a long period of sunlight at the Pole. In the northern hemisphere: MARCH 20 or 21 (the Sun crosses the Equator moving northward). In the southern hemisphere: SEPTEMBER 22 or 23 (the Sun crosses the Equator moving southward).

    AUTUMN EQUINOX: The first day of the Season of Autumn - and the beginning of a long period of darkness at the Pole. In the northern hemisphere: SEPTEMBER 22 (the Sun crosses the Equator moving southward). In the southern hemisphere: MARCH 20 (the Sun crosses the Equator moving northward).

  4. June 21st =]

  5. my calender says june 20

  6. Astronomical summer begins on June 21.

    Meteorological summer begins June 1 (today). Meteorologists divide the year into four blocks that make much more sense than the astronomical definitions.

    DJF - winter

    MAM - spring

    JJA - summer

    SON - autumn

  7. Summer solstice this year is June 21

  8. June 21st
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