Hamilton's weather is quite changeable, with winter months bringing chilly temperatures ranging from -9C to 10C. As spring approaches, temperatures gradually rise, but still fluctuate between -6C and 18C in April. Summer months are mild, with July being the warmest, averaging 16C, although temperatures can drop to as low as 7C on cooler days. Autumn brings a slight cooling trend, with October averaging 11C, while winter returns with temperatures ranging from -4C to 13C. The overall temperature range is moderate, but Hamilton experiences distinct seasonal variations in its climate.