When is it not windy every spring?

There is nothing that doesn't blow, but sometimes the wind is lighter. Moreover, in spring, the temperature changes from cold to warm, the ground temperature keeps rising, the air near the ground is hot, the air at high altitude is cold, the upper cold air drops, and the lower warm air rises. In this process, the air convection is strong, forming a strong wind. And because the low pressure near the ground moves fast, the wind speed is relatively high. Therefore, the wind is strong in spring and the frequency of wind blowing is frequent.