At various times between 17, issues arose which caused dissatisfaction between the Caldwell and Verona areas.These included a desire of the citizens of Verona to more closely control their own governmental affairs.
Further growth and the need for a water system and other public utilities found Verona moving ahead of the other half of the township and in 1902 the two areas decided to separate into two separate municipalities: Verona Township and Verona Borough.
It took two sessions of the state legislature to approve the new borough, but on April 18, 1907, the borough of Verona was approved by an act of the New Jersey Legislature, pending the results of a referendum held on April 30, 1907, in which the new borough passed by a 224-77 margin.
Residents of the newly formed borough had sought to disassociate themselves from the Overbrook County Insane Asylum and the Newark City Home (a reform school), as well as from the settlement of Cedar Grove, which was considered a settlement of farmers.
In 1981, the borough was one of seven Essex County municipalities to pass a referendum to become a township, joining four municipalities that had already made the change, of what would ultimately be more than a dozen Essex County municipalities to reclassify themselves as townships in order take advantage of federal revenue sharing policies that allocated townships a greater share of government aid to municipalities on a per capita basis.
Today, Verona uses just "Township of Verona" in most official documents, but some other official documents such as purchase orders still include "Township of Borough of Verona".
According to the United States Census Bureau, the township had a total area of 2.776 square miles (7.191 km Verona has a temperate climate, with warm/hot humid summers and cool/cold winters.
The climate is slightly cooler overall during the summer than in New York City because there is no urban heat island effect.
January tends to be the coldest month, with average high temperatures in the upper 30s (Fahrenheit) and lows in the lower 20s.
Verona and several neighboring towns were all originally one town known as the Horseneck Tract.