What does the phrase “it’s like Groundhog Day every day” mean, and where does it originate?

To provide a smidge more detail, the movie Groundhog Day is about a man reliving the same day over and over and over. Every time he wakes up it's Groundhog Day again, and people always say the same things and do the same things over and over, and he's the only one who is aware of the infinite repetition and who is capable of doing things differently.

It is taken from the film Groundhog Day, which has Groundhog Day every day as its basic conceit.

Bottom line: refusing to consider archives of lessons learned.

In the business world, and again affectionately referencing the movie, the expression is used around the water cooler to lament on inefficiant processes. Companies/clients that continue to make the same development mistakes over-and-over fail to learn from the lessons of the day prior. Hence, despite lessons learned, they wake up with the same naive perspective on a problem that has already been addressed or even solved at some point in recent history.