Orion is most prominent in the northern hemisphere's winter sky (around December, January, and February). However, it can be seen in the early evenings of autumn (September/October) and late evenings of spring (March/April), though it's not as high in the sky during these times.

Here's a breakdown:

* Best Viewing: December - February (Northern Hemisphere)

* Visible: September - April (Northern Hemisphere)

Keep in mind that this is for the northern hemisphere. In the southern hemisphere, Orion is visible during the summer months.