Why has it stopped warming in Jingchuan County these days?

Jingchuan county is not warm these days, because the local weather has changed a lot recently, and the temperature has also changed. According to the relevant public information, the weather forecast issued by the state shows that the temperature in Jingchuan County and its surrounding areas is relatively low recently, which is somewhat lower than the normal temperature, so the temperature rise in Jingchuan County has stopped for several days.