YeastMatch

Substitute for Centennial: hops like Centennial

Centennial (United States)

If you cannot get Centennial, this is the closest hop and what changes in the beer.

Close, with a caveat. Cascade is the nearest substitute for Centennial, but the aroma shifts.
Substitution
Centennial (United States)
Cascade

Original hop vs substitute

Out ofCentennial (United States)
Closest substituteCascade
Original alpha acid7.8 to 11.5 %
Original myrcene30.7 to 65.7 %
Original aromaCitrus with woody-spicy notes of spruce and tonka, fruity raspberry and lychee, and fresh lemon and bergamot

Notes

Out of Centennial, Cascade is the nearest aroma substitute in the same American citrus family.

Cascade is softer and lower in alpha, so you will need more of it for the same aroma and a separate clean bittering hop to make up the lost bitterness.

What to buy instead

Related

Sources: BarthHaas Centennial hop variety profile ยท BarthHaas Cascade hop variety profile