Deaux has a hot-summer Mediterranean climate (Köppen climate classificationCsa). The average annual temperature in Deaux is 14.9 °C (58.8 °F). The average annual rainfall is 967.1 mm (38.07 in) with October as the wettest month. The temperatures are highest on average in July, at around 24.5 °C (76.1 °F), and lowest in January, at around 6.6 °C (43.9 °F). The highest temperature ever recorded in Deaux was 42.9 °C (109.2 °F) on 28 June 2019; the coldest temperature ever recorded was −9.1 °C (15.6 °F) on 5 February 2012.
Climate data for Deaux (1991−2020 normals, extremes 1988−present)