TLDR; "Soon". Archive: https://archive.today/YbuMg From the post: >>The cold is coming to Denver with temperatures dipping close to freezing on Monday, and meteorologists are saying that locals should start to prepare for the first hard freeze. The first freeze is when temperatures dip to 32 degrees or lower. Meanwhile, the first hard freeze is when temperatures drop to 28 degrees or colder for at least an hour, according to the Pinpoint Weather team.