I had forgotten I was going to take pictures of plumeria trees (Flor de Mayo) around town but I did get one on my cell phone. I took this in the last couple weeks and it has quite a few blooms for this time of year. You can see from the door in the picture that these are about 20' tall.
Since they are native to this part of the world I can tell you a little about their natural weather. The rains stop almost entirely around the middle of November and there is little to no rain until early June. The months of April and May are very, very hot and quite humid. It's the hottest time of the year for us. No rain though, just hot and humid. The rains start sometime in June and the temps are cooler as it generally rains in the late afternoon or night. It's a wonderful time of year, heavy scented evenings but cool enough to be pleasant - at least for those of us adjusted to the tropics
The name for plumeria in spanish is Flor de Mayo which means flower of may, that tells you that the most prolific blooming is in that hot, dry but humid time of the year after a long period of drought. The native white with yellow centers type does bloom all year but sparsely. All types of flor de mayo bloom very heavily in April and May, the trees are a mass of blooms and the scent is heavenly. Most of them drop a lot of leaves in the dry winter, they don't go entirely bare but they are not as lush as in the rainy season.
To duplicate this in the north where they go completely dormant, I'd repot them in the spring but water sparingly to give them the slight moisture of the heavy humidity but not the drenching of the rainy season.
Hope this is useful info,