I live in the Colorado Rockies between Golden and Boulder and about 12 miles west at around 8,500 ft elevation.
I’ve been to Boulder several times on vacation trips with my parents when younger. It was strange to me to see tall banks of snow on each side of the road in June.
On one of the trips we went Through Cody Wyoming and had to stop and buy snow tires, during which time we were pelted with baseball size hail.
Do you have a green house, or south or west window?