Microclimates.

You may have noticed that if you stand out of the breeze in a sun facing corner you are warmer than if you stand out in the breeze. If you have, you have already discovered microclimates.
Microclimate recognition and creation can help you to grow plants out of season; tomatoes can be started earlier in spring in a warm spot, coriander can be grown in cooler afternoon shade in summer to prevent it going to seed, and so on.
On a large scale, fruit trees that are not from your climate zone can be planted near large rocks to collect heat over the day and keep them a bit warmer overnight as the heat dissipates from the rock, or you could plant on a south side (in the southern hemisphere), to give fruit trees an extra chilling factor in warmer places (like Perth).