I can tell its Autumn for the following reasons:

My car is so covered in leaves it looks like a compost heap, even though I washed it on Sunday.

Slates have started falling off the roof of the outside loo.

I have had a shocking cold for over a week.

I have this uncontrollable urge to eat nothing but jam donuts and homemade soup.

I have had to have the lights on in my office all day.

In the last week I have started wearing my coat to go to work (first time since early May)

I have been home from work for an hour, but I still have my coat onbecause the house is so cold.

I have had to put my "winter" duvet on my bed.

However, I have only a week and a half before I go on holiday - to somewhere warm