Villiers-AdamVilliers-Adam is a commune in the Val-d'Oise department in Île-de-France in northern France.GeographyClimateVilliers-Adam has an oceanic climate. The average annual temperature in Villiers-Adam is. The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around. The highest temperature ever recorded in Villiers-Adam was on 11 August 2003; the coldest temperature ever recorded was on 1 January 1997.