Nota bene, this isn't the Farmer's Almanac everyone's thinking of. You're probably thinking of the Old Farmer's Almanac, which has been in publication since the 1700s and is the oldest continuously published periodical in North America.

I live in Texas and have never seen this Farmer's Almanac in my life. But the Old Farmer's Almanac has been on the store shelves my whole life, and they're still publishing.

Neither is accurate tho. Both are around 50%.