Answer:
Hi !
Storms are not formed daily because , for a storm to be formed , enough moisture and warmth is needed .
Explanation:
Storms are formed when the air full of warmth and moisture rises rapidly into the atmosphere. As the air rises , it cools and the moisture gets condensed , and then it falls back to the Earth as precipitation.
As there is more warmth and moisture in the environment , during summer season , so the thunderstorm activity is greater during summer season .