Denver sits at exactly one mile above sea level, delivering a semi-arid climate with over 300 days of sunshine and dramatic temperature swings that can exceed 40°F in a single day.

The city receives only about 15 inches of precipitation annually, but afternoon thunderstorms materialize suddenly in summer while winter brings sporadic but sometimes heavy snowfall that often melts within days.

Temperatures range from summer highs around 90°F to winter lows near 15°F, though the low humidity makes both extremes more tolerable than the numbers suggest.

The notorious Colorado sun at this altitude delivers intense UV radiation year-round, while gusty winds off the Front Range can make any season feel significantly colder.

Layering isn't just advice here—it's survival strategy for a city where you might need a puffy jacket at breakfast and shorts by lunch.