I think autumn has arrived

On saturday I was wearing a t-shirt outside and it was warm. On Sunday it rained so it was a little chilly. On Monday, it felt like we had just arrived in Siberia! (Well, not quite). There must have been a sudden temperature drop of about 8 or 9 degrees overnight. It meant breaking out the sweaters. As if by magic, everyone at work (including me) suddenly came in with a cold the same day as it got cold. Spooky!