The Farmers’ Almanac is predicting a colder-than-normal winter this year across the nation, with a snowstorm expected in the Northeast right around the time of the Super Bowl in February. That means game day at the MetLife Stadium in New Jersey could be a rough one…and may also mean that the first Super Bowl to be held outdoors in a cold-weather environment will be the last. So how does the almanac determine what Mother Nature has in store for us? It’s a secret formula that relies on lunar cycles, sunspots and planetary positions, and it hasn’t changed much since the first almanac was published in 1818. Supposedly it’s accurate about 80% of the time…so you may as well bust out that down jacket.