May is Cinco de Mayo celebration time for the Hispanic culture and all who love parties, pinatas, music and margaritas.  This cultural event is one of the many California festivals and fairs that are so prevalent in May.  From food fairs with artichokes and strawberries on Memorial Day weekend held the last week in May  to marathons, mules and rodeos, you'll have a ball enjoying the California May Festival calendar. Food is hot and cool in May, planes fly overhead in Chino Air Show and there's lots of pride in local communities.  May signals the departure of Spring and entry into summer. Tourists and travelers start planning trips in this month because the weather's nice and kids are getting out of school soon in June.