In reply to BusyLizzie:
Not hailstones, but cold.
In 1981-2 I was an 18-19 year old spending a gap year in Birmingham. Not for me a far-eastern odyssey. No, I chose Moseley and Solihull. And it was bloody cold that winter. I mean, really cold. One time, on the way up from my home town of Chippenham, the train took fours to get to Bath, when it should have taken 10 minutes. The points had frozen, the gas torch used to unfreeeze them ran out of gas, people started to abandon the train...
I joined the Solihull and Sparkhill athletics club, and they did these 10 mile training runs around Brum, at a quite a pace. In my memory, I did the distance in 63 minutes that winter. I have often thought this must be false, since I can't get near that now, but I did do them shoulder to shoulder with someone who ran the first London Marathon the next Spring in a minute or two under 3 hours, so I might not be too far wrong.
Anyway, I am sure that the -10-ish temperatures, the several feet of piled-up snow at the pavement edge and the consequent fear of getting lost and spending longer outside than was necessary did a lot to keep me going. Not that my rented house was a lot warmer than it was outside, mind.