January weather forecast and climate
Denver, CO

The colorful sky above the sunlit Denver city, Colorado in autumn, with a water body surrounded by trees, and majestic skyscrapers afar
The colorful sky above the sunlit Denver city, Colorado in autumn, with a water body surrounded by trees, and majestic skyscrapers afar
January is a cold and snowy month of the year in Denver with the average low temperature of frigid 17°F (-8.3°C) and a few days even below 0°F (-17.8°C). The average high temperature is 44°F (6.7°C). A few days register 60°F (15.6°C) as the sunshine lasts for a daily 9 hours.
The skies are clear for approximately ten days in January as the humidity seldom goes past 55%. Snowfall averages 7" (177.8mm) in January in Denver - though snowstorms are not as frequent as some of the other parts of the country, the probability of occurrence is noteworthy.
Beware - the conditions change fast! While the day may be warm, the evening and night may quickly switch to cold and icy!

What is the temperature in January in Denver?

The average high-temperature, in January, in Denver, is 44.1°F (6.7°C), while the average low-temperature is 17.4°F (-8.1°C).

How many days does it rain in January in Denver?

In Denver, during January, the rain falls for 4.1 days and regularly aggregates up to 0.4" (10.4mm) of precipitation.

How much does it snow in Denver in January?

In Denver, Colorado, in January, snow falls for 5 days, with typically accumulated 7" (177.8mm) of snow.
Average temperature in January - Denver, CO
  • Average high temperature in January: 6.7°C

The warmest month (with the highest average high temperature) is July (31.9°C).
The month with the lowest average high temperature is December (6°C).

  • Average low temperature in January: -8.1°C

The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is December (-8.3°C).

Average humidity in January - Denver, CO
  • Average humidity in January: 55.2%

The month with the highest relative humidity is December (56.6%).
The month with the lowest relative humidity is July (47.8%).

Average rainfall in January - Denver, CO
  • Average rainfall in January: 10.4mm

The wettest month (with the highest rainfall) is July (54.9mm).
The driest month (with the lowest rainfall) is December (8.9mm).

Average rainfall days in January - Denver, CO
  • Average rainfall days in January: 4.1 days

The month with the highest number of rainy days is May (9.4 days).
Months with the lowest number of rainy days are January and December (4.1 days).

Average snowfall in January - Denver, CO
  • Average snowfall in January: 177.8mm

The month with the highest snowfall is March (271.8mm).
Months with the lowest snowfall are June, July and August (0mm).

Average snowfall days in January - Denver, CO
  • Average snowfall days in January: 5 days

The month with the highest number of snowfall days is March (5.8 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average daylight in January / Average sunshine in January - Denver, CO
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 6.9h

Months with most sunshine are June and July (Average sunshine: 10.5h).
The month with least sunshine is December (Average sunshine: 6.3h).

Average UV index in January - Denver, CO
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 2).

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