Winters in Bootle are generally mild, with temperatures rarely dropping below freezing and averaging around 6-7°C. Spring brings a gradual warming trend, with temperatures rising steadily from March to May, reaching averages of 12°C by the end of May. Summer months see more consistent warmth, with July being the warmest month, but still experiencing cooler mornings. Autumn is characterised by a cooling trend, with temperatures dropping back down into single figures by October.