Nordstrom Inc. (NYSE:JWN) today reported preliminary sales of $420.1 million for the month of May 2000, a 5.2 percent decrease compared to sales of $443.1 million in May 1999. Preliminary 2000 year-to-date sales of $1.57 billion increased 5.7 percent compared to 1999 year-to-date sales of $1.48 billion.