Alzon has an oceanic climate (Köppen climate classificationCfb) closely bordering on a warm-summer Mediterranean climate (Csb). The average annual temperature in Alzon is 11.5 °C (52.7 °F). The average annual rainfall is 1,372.8 mm (54.05 in) with November as the wettest month. The temperatures are highest on average in July, at around 20.1 °C (68.2 °F), and lowest in January, at around 4.0 °C (39.2 °F). The highest temperature ever recorded in Alzon was 39.3 °C (102.7 °F) on 28 June 2019; the coldest temperature ever recorded was −13.4 °C (7.9 °F) on 1 March 2005.
Climate data for Alzon (1991−2020 normals, extremes 1998−present)