It seems strange at this time of year, but in my part of the UK, the immediate problem seems more likely to be draught. It's only due to the fact that we'd had a reasonable amount of rain for the previous two years that we've managed without hose-pipe bans or rationing through the summer. The forcasts keep promising rain, but except for the odd shower there's been very little. A long, hard freeze-up would make things much worse, as there would probably be more wastage and supply problems due to burst pipes and mains.