And though high-fives and Champagne are definitely warranted all-round, it's only slightly depressing to note that most of us contributed to the previous record as well.
The previous record in 2014 has been bumped to second place.
A climate scientist in the US worked out the odds of experiencing back-to-back record-breaking years.
In a world that isn't warming, he reckons it would happen about once every 1500 years. That would make the last back-to-back phenomena coincide with the decline of the Roman Empire. But in a warming world, the chances are much higher: one in 10.
Of course the world is warming. Everyone agrees with that.
But listen closely to the volume of climate scientists who attribute last year's scorcher to the combination of El Nino and manmade climate change. Listen to them when they despair that the Paris agreement is insufficient and that our window of opportunity to prevent disaster is closing awfully fast.
Or, you know, don't. Make like the topless guys diving around Central Park's beach volleyball courts. Enjoy the silver linings and keep your head in the sand.
After all, volleyball is so much fun. And hey, at least petrol's cheap.