Particularly in New York in the months of February and March.
What with Borodin’s Prince Igor being revived at the Met after a century’s absence (I last saw it when the Kirov brought it to the Met during their 1998 season), and Juilliard performing Stravinsky’s one-act Mavra, led by James Levine.
If these don’t shake the Manhattan ballet/opera crossovers out of the winter doldrums, I don’t know what can!