Saint-Hilaire-sur-HelpeSaint-Hilaire-sur-Helpe is a commune in the Nord department in northern France.GeographyClimateSaint-Hilaire-sur-Helpe has an oceanic climate. The average annual temperature in Saint-Hilaire-sur-Helpe is. The average annual rainfall is with August 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 Saint-Hilaire-sur-Helpe was on 25 July 2019; the coldest temperature ever recorded was on 7 January 2009.