Every time the temperature climbs above 60 degrees, we crave a margarita, whether it's on the rocks or frozen, tequila or mezcal-filled, flavored or classic. And you can't forget the perfectly salted rims. Since there are so many margaritas to try at Mexican restaurants, bars, and seemingly every happy hour menu in Philly, it’s important to know where to find the best. When you want that ultimate blend of sweet, sour, and a whole lot of tequila, check out these 15 spots.