Most PCT thru-hikers will start from Campo on the Mexican border after the annual kickoff party in late April or early May and hike northbound to Manning Provincial Park along the U.S-Canadian border in 5 to 6 months, averaging about 20 miles a day. Some PCT thru-hikers will finish in 4.5 months–starting in mid-May and finishing in late-September, averaging about 22 miles a day with a zero (rest) day every 7-10 days. Planning to do it this quickly, however, doesn’t factor in time for contingencies like illness and other medical issues.
plan your trip on the pacific crest trail – Backpacker