Welcome in advance. Here is the page to download MesoWest archive data for Lookout Mt.

For ~7000 ft hard to find climo data but here is main page, and kindasorta close is [from low to high elev] (1., 2., 3.).

Your last frost should be ~May 25th or so, first frost ~end of September. Lots of spring and fall wind and up there most years only episodic snow (not coverage all winter) but the episodes are big dumps of snow that melt off in 2-5 days, then bare ground, then another episode thereafter. Couple stretches of well below zero every winter but not every night and many days in 40s in winter.

That is a frequent fire regime up there so you'll want to learn about defensible space and how to landscape to lessen the chance of fire loss - this year it is just west and north of Boulder so far with the big fires and structure loss. Summer will have single-digit humidities and long stretches of no precipitation, down here we have soil moisture to ~July 4th under thick mulch. Many days in upper 80s, some 90s (esp this year).

Veggies are very different and season extenders are easily done as there is so much sun. You'll have to mulch soil and also realize what you grew back there may not grow here. Probably up there you can't do tree fruit but raspberries/blackberries /strawberries and the like are doable.

Dan

You will get more snow than Denver, but your winter cold temperatures won't be quite as low. In the summer, your high temps will be a few degrees cooler. You'll get occasional winds, but I don't know how that will compare to Denver.

You'll have more problems with deer, rodents, and other plant-eating mammals, including bear and elk.

You may or may not have reasonable soil. I don't know if you'll be on well or city water, but use it sparingly either way.

Yes, do plan on defensible space for fires.

You may end up having an interesting micro-climate or set of micro-climates. For example, snow will not melt as much on north-facing exposures, but will melt quickly on south-facing exposures. Even though you are on the east side of Lookout Mountain, your individual lot/house/etc. will have its own characteristics. You can use this to your advantage as you plan out where to put different kinds of plants.

Good luck!

There is a good article in the Sunset Magazine about fire-wise plantings. Of course, it covers a wide range of areas in the West - not just specific to Colorado. Worth checking out, though, for some ideas.

Here's the link to the article online: Fire-Smart Garden Guide.
Not sure if contains the entire article or not.

Welcome to the intermountain west! And all of the challenges of gardening here.