Many of the trees are bare now but there is still plenty of autumn colour. We had good leaf growth this year due to a damp spring and July was rainy keeping the ground moist (unlike last year's prolonged heatwave). The autumnal months have been rather warm and wet extending the growing season. 

 The accumulation of sugars in leaves (through the action of chlorophyll/photosynthesis) is absorbed by the tree as winter dormancy approaches. Thus we have spectacular displays of those fiery reds and blazing yellows which turn to mottled browns as they fade. Even more so this year with the weather we've had.