Arphy has an oceanic climate (Köppen climate classificationCfb) closely bordering on a warm-summer Mediterranean climate (Csb). The average annual temperature in Arphy is 12.7 °C (54.9 °F). The average annual rainfall is 1,561.2 mm (61.46 in) with October as the wettest month. The temperatures are highest on average in July, at around 20.9 °C (69.6 °F), and lowest in January, at around 5.6 °C (42.1 °F). The highest temperature ever recorded in Arphy was 40.7 °C (105.3 °F) on 28 June 2019; the coldest temperature ever recorded was −12.3 °C (9.9 °F) on 12 February 2012.
Climate data for Arphy (1981−2010 normals, extremes 1989−2020)