We seem to be in a steady warming trend so yes. Also depends on the local climate. Adam is only about 15 miles from me and he gets really cold weather compared to me. I had a single surprise light frost this past winter and no freeze. Last year I had a surprise frost and I think one freeze. Year before two frosts. Again though, I would greatly advise waiting until this drought is over. I am repotting a few of my trees but I am not putting anything into the ground currently and I have several, namely citrus, that need to be pulled and replaced.