freezing, with frosts typically on 25-45 nights, depending on location. Absolute minimum temperatures range from at St James Park, in central London down to at Northolt during January 1962 - the lowest official temperature in the London area. More typically though to is the record minimum for most parts of London, as is shown by the Kew, Heathrow and Hampstead figures. The lowest temperature to occur in recent years was at Northolt during 2010. During summer, daytime temperatures are typically around . Typically, according to 1981-2010 normals, the warmest day of the year at Heathrow will reach , and 26.4 days will attain a temperature of or above. Kew's record high of is the highest temperature in the London area. In the summer of 2018, there was a hosepipe ban throughout London due to the high temperatures and lack of rain. London is vulnerable to climate change in the United Kingdom, and there is increasing concern among hydrological experts that London households may run out of water before 2050. Sunshine tends to increase towards the west of the London area, with annual average at Heathrow and Kew in excess of 1,600 hours, at Northwood and Hampstead, in the 1,500-1,600 hour range, but at Greenwich, below 1,500 hours. The sunniest year on record at Heathrow was 2003, with, coincidentally, just over 2,003 hours of sunshine. Heathrow - Airport Weather Station to the west of London, Kew - Weather station in the South West part of London, adjacent to the River Thames. Hampstead - Weather Station in North London. The weather station enclosure is the most elevated of any in the London area, and as a result daytime temperatures are typically one degree lower than Heathrow, Kew, Northolt and Greenwich. Northolt - Airfield Weather Station in the North West of London. Temperature extremes range from in August 2003, down to in January 1962. Greenwich - Weather Station in South East London located near the river Thames. See also Agriculture in London References