As mentioned the Nor-Wester can get pretty strong.
Unfortunately the strongest winds do come around the Equinox, the month of October can usually mean weeks of the Nor-West blowing. The strongest wind I have seen on the ground was at my old workplace, where we saw a constant breeze of 70 (yes seventy) knots gusting to 100 knots. Once the summer does settle in usually the Nor-west comes through about once every 10 days or so with long spells of fantastic weather!
But enjoy your time flying around there - about the only place in a few hours flying you can see Mountains over 10,000 feet, glaciers, rain forest and grassy plains!