If the healthy plant is already awake and leafing very well and in a very well draining media, I think you can leave them out, but do check your overnight temps that it is not going to be below 50F afterwards in the following nights, even if your daytime highs registers in the low 60's and 70's. For the sickly Plumie, best to keep indoors and protect it from the rain and cold, it will just add to its troubles.
I know it is frustrating to do the in and out storage of the plants..but it is still technically winter, and these plants are tropical ones, they prefer to be dry when dormant not cold and humid. ; but enjoys the warmth and humid conditions when already awake.
In my area, we are considered in Central Valley, the hot thermal zone during summer, but we get cold inversion during winter. When it rains, it is good, warms up temps a bit, but the following day we go very cold, since there will be snow in the mountains, so we get the cold temps or fog later in the valley. But you are in Long Beach, so much nearer to the coast, you may have better warming conditions from the ocean.
