Hi I totally agree on the location aspect makes a massive difference !!i am in herfordshire 20 miles north of London
my year never really finishes -still working my way through glorious sweetcorn,last of the courgettes tomatoes ,aubergines ,Chinese cabbage ,leeks ,cauliflower ,rench beans (although we had a real dip in temperature and they have just about had it ) spinach bok choi mizuna bunch carrots ( havent touched the main crop yet ) beetroot, brocolli ,bulb fenell red chicory,various lettuces -i'm sure theres more especially if you include the fruit .
coming on stream for winter - calvo nero ,curly cale various cabbages,various broccolii ,russell sprouts ,celeriac various lettuce and greens -lots of bok choi (i can keep this going quite late into the year outside and almost all the year round in the glasshouses ) spring onions, swiss chard, parsnip ,tunips ,swedes lambs lettuce, spinach, spring greens