Winters in Hammersmith are generally mild, with temperatures rarely dropping below freezing and averaging around 4-7°C. Spring brings a gradual warming trend, with March often seeing the first signs of warmth, reaching averages of 7°C. As summer approaches, temperatures rise significantly, with June and July consistently hitting highs above 20°C, peaking at 27-30°C. Autumn sees a return to more moderate conditions, with October and November averaging around 12-8°C before dropping back down in December.