Erftstadt's winters are typically cool and variable, with temperatures ranging from around -14°C in February to -12°C in January. Spring brings mild temperatures, often between 0-19°C, with March and April being the most stable months at around 3°C on average. Summers are warm but not hot, with July and August averaging around 15-16°C, while June can be quite pleasant with temperatures up to 29°C. Autumn is generally cool again, with October experiencing a return to more variable temperatures, between -2-15°C. Winters can be chilly, especially in December when temperatures rarely rise above 12°C.