How did the ancients know when it was windy and when it rained?

The ancients attached great importance to weather forecast, and the earliest weather record in China was recorded in the Oracle Bone Inscriptions era. In ancient times, weather forecasting mainly relied on three means:

First, make solar terms. Dividing a year into 24 solar terms can effectively divide the alternation of seasons, thus achieving the purpose of estimating the weather.

The second is to look at the astronomical phenomena. At that time, people summed up some astronomical experiences through long-term farming life, such as predicting the weather by wind direction and wind force, and predicting the weather by observing clouds.

The third is to predict the weather by summing up life experience, such as: it will rain when the swallow flies low, it will rain when the water tank ebbs, and it will clear up when there are water drops on the spider web.