Basic Rain?

[tandoorichicken]

Why isn't there such a thing as base rain? Or do we just never hear about it?

[chem_tr]

It is theoretically possible, in cases where a gas of a basic character is dissolved in rain water, and condensed to fall down. Acidic rain is that sulfur trioxide (SO3) is dissolved in water, in the form of sulfuric acid, (H2SO4).