Winters in Brockton are harsh, with temperatures often below freezing and averaging around -2°C, fluctuating between -17°C and 11°C. Spring brings a slow warming trend, with temperatures gradually increasing to an average of 9°C by April, still experiencing cold snaps but also warmer days up to 25°C. Summer is mild, with July and August being the warmest months, averaging around 21-23°C, but rarely exceeding 35°C. Autumn sees a decline in temperature, returning to averages around 6-14°C by November, with occasional cold spells.