Pralognan-la-Vanoise has a humid continental climate (Köppen climate classificationDfb). The average annual temperature in Pralognan-la-Vanoise is 6.0 °C (42.8 °F). The average annual rainfall is 1,105.6 mm (43.53 in) with May as the wettest month. The temperatures are highest on average in July, at around 15.1 °C (59.2 °F), and lowest in January, at around −2.8 °C (27.0 °F). The highest temperature ever recorded in Pralognan-la-Vanoise was 33.5 °C (92.3 °F) on 31 July 1983; the coldest temperature ever recorded was −27.4 °C (−17.3 °F) on 3 February 1956.
Climate data for Pralognan-la-Vanoise (1991−2020 normals, extremes 1934−present)