I think that you are right! Arnold the pig predicted this would happen.
Green Acres
Episode: Where There's a Will
One storyline has Arnold [The Pig] inheriting millions of dollars as the sole descendant of the favorite pig of a pork-packing magnate, distinguished by his ability to predict the weather with his tail. Some doubt exists as to Arnold’s weather prediction skills when, during the claims process for the money, his tail predicts snow in the middle of warm weather.
This prediction is disbelieved and Oliver finds himself in a difficult situation checking out of an expensive hotel, because he has to deal with Arnold’s expensive bill being deemed Arnold’s “Pig Lawyer” by the town of Hooterville.
However, during this difficulty, Arnold’s seemingly impossible prediction proves accurate when a freak snowstorm buries the city. So the hotel welcomes Arnold back with open arms.