As Texas gets at least a temporary reprieve this week from the heat, with a nice round of rain blanketing much of the state, the Old Farmer’s Almanac is predicting January will bring significant snowfall to the state.The periodical, founded in 1818, develops its extended forecast “using a 204-yearold mathematical formula focused on sunspot activity, planet positions and tidal actions of the moon.” The almanac’s website claims its forecasts are 80% to 85% accurate.Since the secret formula was first developed by David Young, an astronomer and mathematician who was the almanac’s first editor, only seven people have been hired to ...