Nainville-les-RochesNainville-les-Roches is a commune in the Essonne department in Île-de-France in northern France.Inhabitants of Nainville-les-Roches are known as Nainvillois. The historian Jean Gagé was born in Nainville-les-Roches.WWW nainville.frGeographyClimateNainville-les-Roches has an oceanic climate ). The average annual temperature in Nainville-les-Roches is. The average annual rainfall is with December as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around. The highest temperature ever recorded in Nainville-les-Roches was on 4 August 1990; the coldest temperature ever recorded was on 9 January 1985.