CHEYENNE, Wyo. (AP) — It’s still summer, but a snowstorm blanketed parts of Wyoming, South Dakota, Montana and Colorado, setting early snowfall records in some places, covering lawns and flower gardens and providing a preview of what is to come.The snowstorm dumped up to 20 inches of snow in parts of Wyoming on Wednesday and Thursday and sent overnight temperatures plummeting into the 20s in some areas.While snow in September is rare, it isn’t unusual for local residents used to wild swings in the weather.“I don’t mind it; it is what it is,” said Deann Meyer of Buffalo, Wyoming, where up to 10 inches of snow fell. “It’s going to be 80 next week. That’s what the weather says.