A Santa Ana event usually occurs during the cooler months, from late September to May and generally lasts just a couple of days, but on rare occasions can continue for up to a week.

I avoid it except on rare occasions, when there’s no place I’d rather be.

And on rare occasions, they haven’t.

On rare occasions, Im would be lucky enough to buy a piece of candy by selling bottles or scrap rubber.

The American Meteor Society considers the Draconids as variable meteor showers because they can produce little activity or, on rare occasions, illuminate the sky with hundreds of shooting stars.