Notice it happened more frequently before the monster -pdo/-enso background state after 2015. Since that year, it only happened once. So i’m not sure if this pattern will hold this time. If it does, I think its random chance, like flipping a coin and getting tails 5x in a row and then getting heads on the 6th try.
But if we DO get a cold February, I’m willing to eat my words and concede that you’re onto something.