What does the sudden drop in temperature mean?

1, a sudden drop in temperature means a sudden and sharp drop in temperature. The sudden drop in temperature means it is colder than before. The temperature difference between day and night suddenly increased.

2. The temperature mentioned in the weather forecast refers to the air temperature measured in the open air without direct sunlight (generally measured by blinds). The highest temperature is the highest temperature in a day, generally appearing in14-15; The lowest temperature is the lowest temperature in a day, usually before sunrise.