You're always going to have periods of troughs up there. No where on this planet can you have the same exact pattern for months. That is climo up there...they get snow..lol. Even our most epic winters will have a trough up there at some point.
What you do not want to see, is the continued redevelopment of troughing up there. You'll need a solid 3-4 weeks of data to see if that happens.