Celle experiences a continental climate with cold winters and warm summers. Winters, from December to February, are frosty with temperatures often below 0°C, but can occasionally rise above 10°C. Spring arrives in March, bringing mild temperatures that gradually increase throughout the season, with April and May seeing average highs around 11-19°C. Summer months, June to August, are warm with average highs often reaching 20-25°C, while autumn sees a cooling trend, with October and November averaging around 6-10°C.