 The temperature recorded was −21.1 °C on 5 January 1941.The summer months are considerably warmer, especially the months of July and August with a mean daily temperature ranging from 21 °C in the South of Yorkshire, to a temperature of 16 °C or less in areas situated in the higher Pennines.The highest known temperature for this region was in August 1990, with temperatures of 33 °C caused by several heatwaves.