Let’s be honest—there’s nothing better than a weekend picnic when the weather’s perfect. And just because summer’s winding down doesn’t mean your outdoor fun has to!

LawnStarter compared the 500 biggest U.S. cities based on four categories to find the ultimate picnic spots. The ranking was determined by the number of public parks, how many residents live within a 10-minute stroll to one, and of course, the weather!  The top five...