Nomi has a humid continental climate (Köppen Cfa) characterized by mild summers and cold winters with heavy snowfall.

[2] Per Japanese census data,[3] the population of Nomi has recently plateaued after a long period of growth.

The area around Nomi was part of ancient Kaga Province and contains numerous Kofun period ruins.

The modern city of Nomi was established on February 1, 2005, from the merger of the towns of Neagari, Tatsunokuchi and Terai.

Nomi has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 17 members.