It really dependes on where you mean in leeds, Leeds center, or the suburbs of leeds??? Also when the surburbs of leeds on the 4th of Dec all recieved around 5-7cm of snow (not from frontal snow but merged showers). In Kirkstall (surburb close to the city center) there was nothing at all, also the surburbs of leeds are very high up, cookridge (210asl) is the opposite hill to LBA but definatley part of leeds, here tempratures are commonly a good 3.c colder than the center of leeds which is only around 60-70m high up. On the 5th of december leeds center recieved about 5cm of snow at the most, while cookridge recieved 14cm. Currentley the temprature in leeds center: 4.6c Temprature in cookridge 210asl (surburb in leeds): 2.7c There is currentley a 1.9c temprature different, my point is many parts of leeds are at different elevations, this can also apply to other cities, anyway i would say Leeds is this coldest city in uk, although scotland is further north many of the cities are by the coast. Many are calling towns cities, york is a town so is harogate, Braemar is also a town, there will be colder towns and villages than leeds as leeds is very urbanised.