What is typically the pH of acid rain?

Answer 1

Acid rain usually has a pH of 5.0 or less

It can be anything from about pH 3 to pH 6.

All rain has a slight amount of acid in it, but the powerful stuff is about pH 2.
Acid Rain has a pH of 4 :)
pH is the scale used by scientists to express the aidity of acid rain.

Answer 2

Firstly, all rain is slightly acidic because of the carbon dioxide which dissolves from the air as the rain falls through it. The normal pH is about 5. The pH scale uses numbers less than 7 to denote acids, so the smaller the number the more acidic it is. Air pollution, particularly that caused by the release of sufur dioxide and nitrogen oxides, can cause the pH to drop to about pH 4.http://pubs.usgs.gov/gip/acidrain/2.html

Answer 3

The typical pH of acid rain is between 4.2 and 4.4, which is slightly lower than the pH of normal rainwater (around 5.6) due to the presence of pollutants like sulfur dioxide and nitrogen oxides in the atmosphere.