Winters in Langenhagen are chilly and unpredictable, with temperatures often fluctuating wildly between freezing and mild days. In January and February, average temperatures hover around 2°C, while extreme cold snaps can bring temperatures down to -19°C. As spring arrives, temperatures gradually warm up, but March and April still experience occasional frosts, averaging around 6°C. Summers are generally pleasant, with June being the warmest month, averaging a comfortable 20°C, although July and August can be quite humid. Autumn brings a return to cooler temperatures, with October experiencing a similar temperature range as spring, while November and December see a decline back into winter's chill.