Quincy's winters are harsh, with temperatures often dropping below freezing and averaging around -2°C in January and February. As spring arrives, temperatures gradually rise, reaching averages of 4°C by March and 9°C by April. Summer brings warmth, but not extreme heat, with July and August temperatures averaging around 21-23°C. Autumn is mild, with September and October temperatures still relatively warm, averaging around 19°C and 14°C respectively. By December, the chill returns, with averages dipping back down to around 3°C.