Winters in Le Perreux-Sur-Marne are cold and often frosty, with temperatures frequently dipping below freezing. The coldest months of the year typically see average highs around 4-6°C, while spring brings a gradual warming trend as daytime temperatures rise into the mid-teens. Summers are mild to warm, with temperatures occasionally reaching the high twenties but rarely soaring above 30°C. Autumn is generally cool and temperate, with temperatures often fluctuating wildly between day and night. The region's temperature fluctuations are relatively pronounced throughout the year, with few months experiencing truly stable or extreme weather conditions.