Rotherham's winters are typically chilly, with January and December temperatures averaging around 2-5°C, sometimes dropping as low as -7°C. Spring is a gradual warming, with March temperatures rising to an average of 6°C and April staying relatively cool at 5°C. Summer brings warmth, especially in June and July, when temperatures can reach up to 24-29°C on average. Autumn is mild, with September and October averaging around 14°C before dropping again in November.