What a load of rubbish in this Bristol Evening Post story! The temperature on a single day in a Bristol WINTER compared with the temperature on a single day in the Antarctic SUMMER (Bristol will be cold as the South Pole tonight - snow forecast for the weekend). Such a lack of care over fair comparison. What would the Post be like with setting a complex set of temperature data in its proper context?
Why not instead give some figures for past extreme high and extreme low temperatures along with the average high and low here in Bristol at this time of year? Record Feb high at Long Ashton +18.3 C, record low in Long Ashton -9.7 C (1959-2002), average high 7.7 C, average low 1.8 C (assuming the table of data here http://en.wikipedia.org/wiki/Bristol is accurate and reliable). Compared to these averages it is going to be quite a bit colder tonight if we get the - 6 C forecast. Temperatures will vary according to where you are in Bristol, with the outskirts generally a bit colder than further into the city due to the urban heat island effect.