As long as the grass is not waterlogged or has frost or snow on it, you can, and indeed should, mow all year round.

I agree

I agree. In my area (North Cambridgeshire) I carry out my last cut of the year any time between late October and early December depending on the weather.

Grass stops growing when temperatures drop below 6c.

The earliest I've ever been requested to cut a customers lawn is early January but usually it is mid February or later.

On my gardening round in a "normal" year for weather I hope to cut weekly until late October, once or twice in November ,once in February ,once or twice in March and back to weekly in April.

I used to do my own lawn on a mild day in January if it needed it, which it sometimes did if the previous October and November were wet.

I remembr Bulba once cutting the grass on New Year's Day - this in north east Scotland!

I agree with the above but add to set your mower to the highest setting. I cut mine way too low last year (lowest setting) and it took till May to stop looking yellow and brown and green up.

That is if you can ever find a day when the grass is not so wet as to clog the machine!