Winters in Apple Valley are bitterly cold, with temperatures often dropping below freezing and averaging around -10°C. Spring brings a gradual warming trend, with temperatures slowly increasing by mid-April, although occasional cold snaps can still occur. Summers are mild to warm, with average highs ranging from 22-23°C, while autumns are cool, with temperatures rapidly cooling down after September. The coldest months are typically January and February, with December also experiencing below-average temperatures. Mild periods during the summer months provide some respite from the generally chilly climate.