I too have been to London a couple times, when I was in the US Navy, and it was the dead of winter, foggy and bitter cold every morning. Never been there during the summer months, though I wish I had been.
The weather in London couldn't colder than it has been here this winter, and today's high here in Maryland is just 31 degrees. It was 20 degrees f when I got out of bed to take care of Carol. Brrrrrrrrrrr! I consider any temperature lower than my age the dead of winter, but that's because I'm an old codger and love swaying coconut palms and turquoise colored ocean water.
All the best,
Gary
Yes, oddly enough they were experiencing record breaking heat waves when I was visiting London, which really wasn't that bad for this Texan.
We are currently experiencing our typical "bipolar" sprig weather here in Texas. Just in the last few weeks we had to close the schools due to ice, then we had a destructive tornado come through, and now temperatures approaching 90 , very windy, and unfortunately wild fires are popping up in the country side.
Sorry to get off topic Chas!