It is possible to find some brief information about some religious aspect of September in a previous post here
Similarly it is possible to find some brief reflections about meaning, role and value of Jupiter (together with an invocation) in another post here.
Here I would like to make just a brief additional reflection. Unlike the Traditional Ellenist tradition (which shows a sort of hierarchy among the divine forces), in the Traditional Roman Spirituality this hierarchy is rather attenuated. In practice, no divine forces prevail over other divine forces: there is no Olympus with a monarchist organization and structure.
In the Traditional Roman Spirituality these divine forces and energies are specific expressions with specific meanings, values, roles: they are like tiles in a huge and complex Sacred Mosaic where each tile has his/her own importance, role, function, value.
The Jupiter's/Juno's Supremacy does not result by the fact to be at the top of a hierarchy of divine forces, but by representing the idea of Supremacy in sacred terms. They have a Supremacy because they are Supremacy. They have Authority because they are Authority.
This is the reason why another crucial symbol of Jupiter/Juno is the mountain, in particular the top of the mountain.
I think it is important to have these principles in mind also to overcome the profane idea of "God/Goddess of..."