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The beginning of Spring in the northern hemisphere is the beginning of Autumn (Fall) in the southern one.
Yes, September 20, 2009 marks the autumnal equinox which is considered the beginning of fall in the Northern Hemisphere.
It would be autumn in the northern hemisphere.
That happens when at the March equinox - usually the 20th or 21st of March. This is the beginning of spring in the northern hemisphere, or the beginning of autumn (fall) in the southern hemisphere.
That happens at the beginning of winter - December in the northern hemisphere, June in the southern hemisphere.That happens at the beginning of winter - December in the northern hemisphere, June in the southern hemisphere.That happens at the beginning of winter - December in the northern hemisphere, June in the southern hemisphere.That happens at the beginning of winter - December in the northern hemisphere, June in the southern hemisphere.
The December solstice, which is the winter solstice in the northern hemisphere marks the beginning of northern winter.
Don't understand your question. Equinox means "equal night", meaning the Northern Hemisphere and Southern Hemisphere both receive equal amounts of day and night. It signifies the beginning of Spring in the northern hemisphere and the beginning of Fall in the southern hemisphere.
It is spring.
The fall equinox occurs in September in the Northern Hemisphere.
If it is fall (autumn) in the northern hemisphere, then it is spring in the southern hemisphere, and vice versa.
Winter
In the northern hemisphere it is the winter solstice that marks the start of winter.