So you know how different times of the year have different weather, like winter is cold and summer is hot? Well, sometimes the weather starts to change earlier or later than it usually does. This is called season creep.
For example, if it's usually cold in November but this year it's still pretty warm, that's season creep. It's like the seasons are moving around and not following the usual schedule.
This can happen because of things like climate change where the Earth's temperatures are slowly getting warmer overall, or because of natural cycles in the atmosphere and the oceans. Scientists are studying season creep to try to understand what's happening and how it might affect things like plants, animals, and people who rely on the seasons to know when to plant crops or go on vacation.