11. Vail, Colorado
241 South Frontage Rd. #8150, Vail CO, 81657, map
Weather Avg: 77° / 42° F
Although Vail is known as a world-famous ski town, if you come during July, the wildflowers are typically in peak bloom. We went in late June, and we saw some flowers starting to bloom and wished we timed our trip a couple of weeks later. The weather is mild all summer, so it’s perfect for hiking, biking, climbing, and other outdoor activities. You can also find better travel and hotel deals than during winter, although visiting in the summer is also gaining popularity.