Orbital period in itself is just a number. Interesting variable is how does the climate on planet change during it. On Earth climate gets affected because of axial tilt of the planet, giving different hemisphere different amount of solar energy during a year (due to length of a day and Sun path on the sky).
If those planets have little axial tilt and little variety in distance to their star, there should be little variety in climate on them.
If those planets have little axial tilt and little variety in distance to their star, there should be little variety in climate on them.