Winters in Andover are typically chilly, with temperatures often below freezing, but occasional warmer days can reach up to 12°C. Spring brings a gradual warming trend, with March and April seeing average highs around 22°C and 18°C respectively. Summers are warm to hot, with July being the warmest month, averaging 18°C, while August and September are similar in temperature profile. Autumn is generally mild, with October experiencing cooler temperatures, but still relatively pleasant, before dropping into the chill of winter again.