Chorley's winters are typically cool, with temperatures rarely rising above 12°C in February and averaging around 4-5°C throughout January and December. As spring arrives, temperatures gradually increase, reaching averages of 7-10°C by May and June. Summer months bring warmer conditions, with July being the warmest month, averaging around 17°C, while August is slightly cooler at 16°C. Autumn sees a gentle decline in temperature, dropping to averages of 13°C by October before cooling further into winter. Overall, Chorley's climate is generally mild, but can experience some chilly days throughout the year.