This year's First Frost falls at 6:36 p.m. on October 23 when the sun reaches 210 degrees celestial longitude. This is the last solar term of autumn. At that moment, the chilly air falls, and the grass and trees freeze up. On boundless fertile lands, silvery ice crystals are sparkling. Winter is just around the corner.

As one Chinese saying goes, if frost falls on First Frost, barns will be filled with rice. It is believed that frost falling on the day of First Frost signals a bountiful harvest.