The Oregon Renaissance Faire is typically the 2nd and 3rd weekend in June open 10am to 6pm. If you would like to visit similar events in your area I suggest RenFaire.com for a comprehensive list of faires by state.
I believe they are every day of the year
Two days, for two weekends for this one. In the northwest there are a couple of other good ones, like the Washington Midsummer Renaissance Faire which goes on during the first three weekends of August.
Usually open Saturday and Sunday for 2 weeks
Two days
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