Does infrequent marijuana usage show up in hair drug tests

i've smoked about 5 times over the last 90 days, each time only taking one or two hits from a pipe/blunt.

i've read that single or rare usage of marijuana is unlikely to show up in these tests (since certain things like humidity drastically dilute the THC in your hair anyway)... would my circumstances be categorized under this exception? would i pass a hair drug test?

Yes...I would unless you stop smoking and get a super close haircut...