I would go ahead and plant them especially the daylilies. I'm not sure of the growing zone for calla lilies but my neighbor's came back this year. I'm in Maryland 6a/7a. I'm sure there are others here that will have better info.

Yes, you can plant now. This gives bulbs time to get established and develop some roots before any cold sets in. The ideal soil should be about 50 F, a bit cooler than summer soil; so things should be right about now. The good thing about bulbs is that most are very adaptable in many circumstances. One or two degrees in weather or inches planted does not make too much difference.