There is enormous energy in a storm, which will be randomly oriented with respect to a bell tower.
The energy in the bell's sound will be radially falling with $1/r^2$ and is not directional. The energy that a man can input to the bell ringing is limited.
The physics answer must be: there is no connection.
Then the question becomes metaphysics, the bell ringing raises the religious impulses of people to diffuse the storm. Are prayers effective? Uneducated religious people in general seem to believe so. Physics has not reached the level of detecting whether there is anything in metaphysics, (from telepathy to, in this case, manipulating storms)
Taking the expectation of bell ringing to defuse storms as a metaphsyics experiment, the answer seems to be "prayers are not effective"
Churches and castles Churches and castles were often extremely dangerous buildings during thunderstorms in the days before the lightning rod was invented. Being so tall, they were highly vulnerable to lightning strikes: hundreds of bell-ringers across Europe were killed over the centuries in the mistaken belief that ringing the bells would ward off lightning. But an even greater hazard was the habit of storing gunpowder in castles and church vaults.