December 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
December is the coldest month in Denver with an average low temperature of 17°F (-8.3°C) and the average high temperature of 43°F (6.1°C).
Snowfall measures 8.5" (215.9mm), but there are a few days, that record highs between 50°F (10°C) and 60°F (15.6°C). Though the cold may be severe at times, December sees an average of 9 hours of daily sunlight and a few days with clear skies. Winter receives negligible rain as the majority of Denver lies in the arid zone.
A few visitors gather on the mountain slopes armed with warm winter jackets, gloves, and caps to enjoy the skiing season.
Average temperature in December - Denver, CO
  • Average high temperature in December: 6°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 December: -8.3°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 December - Denver, CO
  • Average humidity in December: 56.6%

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 December - Denver, CO
  • Average rainfall in December: 8.9mm

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 December - Denver, CO
  • Average rainfall days in December: 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 December - Denver, CO
  • Average snowfall in December: 215.9mm

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 December - Denver, CO
  • Average snowfall days in December: 5.3 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 December / Average sunshine in December - Denver, CO
  • Average daylight in December: 9.4h

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 December: 6.3h

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 December - Denver, CO
  • Average UV index in December: 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).

deutscheenglishespañolрусский中文