Garbsen's climate is characterized by mild winters with temperatures often below freezing, averaging around 2°C in January and February. Spring arrives slowly, with March marking the beginning of a gradual warming trend, eventually reaching average highs of 11°C by May. Summer months are pleasant, with June and July averaging around 19°C, but temperatures can still drop to 7°C on cooler days. Autumn brings a return to milder conditions, with September and October experiencing similar averages to spring. Winters are the coldest period, with December often seeing temperatures below -15°C, while mild spells allow for average highs of up to 14°C.