There is no doubt that the biggest current challenge to gardeners is climate change. The change manifests itself mainly in below average rainfall, an extended fall season (or this can be viewed as a delayed winter season), and milder temperatures at times over the winter. With such changes plants behave differently, doing unexpected and unpredictable things.
For example the bloom period may be extended or new growth may appear after plants are cut back for the winter. The best advice about these conditions is to watch and learn. Make notes about the plants and weather. Let the garden and not the calendar decide your chores. Of course this may mean that there are some things you will actually not get done until spring but it may give you extra time for fall planting.