“三九”天昼夜温差大

Summary - The article discusses the weather forecast for Zhengzhou, highlighting the transition into the coldest period of the year, known as "San Jiu" [1] - It mentions the fluctuation in temperatures over the next five days, with a peak temperature of 15°C expected on January 9, followed by a drop to single digits on January 10-11, and a subsequent rise to around 14°C starting January 12 [1] - The article emphasizes the significant temperature difference between day and night, with minimum temperatures consistently below zero or around 1-2°C, leading to a temperature variation exceeding 10°C, and a maximum difference of 14°C [1]