Saint-Pierre-de-Soucy has an oceanic climate (Köppen climate classificationCfb) closely bordering on a humid subtropical climate (Cfa). The average annual temperature in Saint-Pierre-de-Soucy is 11.5 °C (52.7 °F). The average annual rainfall is 1,122.4 mm (44.19 in) with December as the wettest month. The temperatures are highest on average in July, at around 21.1 °C (70.0 °F), and lowest in January, at around 1.9 °C (35.4 °F). The highest temperature ever recorded in Saint-Pierre-de-Soucy was 41.2 °C (106.2 °F) on 11 August 2003; the coldest temperature ever recorded was −20.7 °C (−5.3 °F) on 7 January 1985.
Climate data for Saint-Pierre-de-Soucy (1991−2020 normals, extremes 1982−2015)