Par for the course means exactly the sort of trouble you should have expected. That is par for the course, pretty much par for the course, par for the course around here.
It is always resigned rather than pleased, which is a reversal of the golf it came from, since playing to par is a good round for most people. The phrase now means ordinary and mildly disappointing.
1phrasepar for the courseExactly the sort of trouble you should have expected.
“The train was late again, but that's par for the course on this line.”
par for the course is a norm.
From golf, where par is the expected score for a course; the phrase turned resigned in general use.
Originally a phrase used in golf. Ironically, completing a golf course in par (or even net par) is actually unusually good for most golfers and is not a typical result.
Etymology from Wiktionary, CC BY-SA
Practised in Idioms