September 20th, 2003 was a Saturday.
Wednesday
Wednesday
Sunday
A Friday.
Thursday.
Monday
The fall season is from September 22 to December 20.
September 20 1970 was a Sunday.
It can be any day...if by day you mean the day of the week, i.e., Thursday, etc. But the date of fall usually falls (nyuck nyuck) between September 20 and September 23 in the northern hemisphere.
In North America, the first day of fall is considered to be on September's equinox. Every year, there is another equinox around March 20.
It formed on 6 September and ended on 20 September 2003.
Yes, September 20, 2009 marks the autumnal equinox which is considered the beginning of fall in the Northern Hemisphere.