Fashion trends, such as skinny jeans and Palazzo pants, can spike and fall quickly year over year, and it can be tough to keep up. Maybe trends in Google searches for specific fashions can help. Hiroko Tabuchi and Josh Katz for the New York Times mapped a handful of fashion searches over time so you can see some of the regional changes.
The above is the view for Tulle skirts (kind of like a ballerina skirt). The trend starts out spotty in various regions across the country and then seems to hit a tipping point around September 2014.
This is based on Google’s recent trends report, but unfortunately the data is in-house, so we don’t get to play.
Disclaimer: I know nothing about fashion, unless you count the hoodie, t-shirt, and jeans mix-and-match game, in which case I’m an expert. However, I am told this does not count.