Average temperatures, rainfall and packing tips for Denver, United States in January
January in Denver is typically cold, with average daytime highs around 2°C and nights near -11°C. It is usually the coldest month of the year in Denver.
Rainfall is light in January: roughly 19 mm across the whole month.
If your dates are flexible, the most comfortable months in Denver are usually September.
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In January, Denver averages a daytime high of about 2°C and a night-time low of around -11°C, based on recent historical data. That makes it the coldest month of the year there.
Rainfall is light in January: roughly 19 mm across the whole month.
January is cold in Denver. City sightseeing works fine if you dress for it, but pack properly and expect short days. If your dates are flexible, the most comfortable months in Denver are usually September.