Black oxide is a finish applied to iron and steel. There is also a ' black oxide' process applied to the copper inner layers of printed circuit boards, but that is another topic.
Since Fall begins at the end of September (usually September 22nd) and ends at the end of December (usually December 21st), it seems much more logical to say that October through December are considered Fall months instead of September through November. Views.
Fall: September, October, November. Climate: Marking the end of rainy season and the beginning of winter, it is a mildly cold climate during fall. Even though winter is the most popular time for travelers to visit Mexico, fall is actually quite a comfortable time to visit the greeneries and beauty of this country.