If we're talking gardening then Autumn arrived a couple of weeks ago here. Last night the greenhouse got down to 8°C
 Our seasons here are about a week or two the wrong side of normal for this part of the UK though.
If you can keep your head, while those around you are losing theirs, you may not have grasped the seriousness of the situation.
If summer ends with the autumnal equinox then it begins with the vernal equinox. Has anybody ever heard anyone announce on March 22nd that summer has started?
@Ben Cotto the spring equinox announces spring, not summer and the further north you go the later spring warms up and the shorter is the summer. Altitude, latitude and continental masses of coastal influences also play.
It's cooler here too @wild edges tho actually normal for pre climate change times so I'll be keeping an eye on night time temps and maybe closing the back door of the polytunnel and bringing in the house plants from their summer hols on the north facing terrace.  Daytime temps still in the mid 20s so it's OK.
Using the equinoxes to define seasons doesn’t work. If summer ends on September 22nd and mid Summer’s day is June 23rd, when does summer start?Â
The simplicity and widespread acceptance of the Met Office’s definition of the seasons is well suited to the UK. Making each season three months long makes autumn and maybe spring about a week longer at each end than weather and growing conditions typically indicate but I am perfectly happy with the assertion autumn begins today and not in three weeks’ time.
Summer starts on the summer solstice (which this year was June 21st). Midsummer day this year was on June 24th. So summer must have ended on June 27th.
@BenCotto I think any dogmatic date system for seasons in the UK is doomed to fail given the wide variation in latitude between Land's End and the top end of Shetland just as there are wide differences between the west and east coasts. @Fairygirl said it was already autumnal in her neck of the woods last week.
Summer starts on the summer solstice (which this year was June 21st). Midsummer day this year was on June 24th. So summer must have ended on June 27th.
Unfortunately I think that estimation for the length of Summer is about right this year. We did have a lovely warm Spring though.
@BenCotto I think any dogmatic date system for seasons in the UK is doomed to fail given the wide variation in latitude between Land's End and the top end of Shetland just as there are wide differences between the west and east coasts. @Fairygirl said it was already autumnal in her neck of the woods last week.
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I think I'm one of the few people here who loves autumnÂ
..and it's been here for a while, although less than usual.Â
I live in west central Scotland - not where that photo is...
It's cooler here too @wild edges tho actually normal for pre climate change times so I'll be keeping an eye on night time temps and maybe closing the back door of the polytunnel and bringing in the house plants from their summer hols on the north facing terrace.  Daytime temps still in the mid 20s so it's OK.
Let's hope for an Indian Summer then.Â
Unfortunately I think that estimation for the length of Summer is about right this year. We did have a lovely warm Spring though.
Are we allowed to call it that any more?Â
And you can always blame it on the French as it was a certain Mr Crèvecoeur who first coined the phrase in a letter in the late 1770s.