Denver
Colorado, USA
Long-term weather forecast
Long-term weather forecast
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January weather forecast and Climate
Denver, CO

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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!
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  • The average high temperature in January: 44°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is December (42.8°F).

  • The average low temperature in January: 17.4°F

The month with the highest average low temperature is July (58.9°F).
The coldest month (with the lowest average low temperature) is December (17.1°F).

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  • The 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%).

  • The average rainfall in January: 0.4"

The wettest month (with the highest rainfall) is July (2.2").
Driest months (with the lowest rainfall) are January, February and December (0.4").

  • The 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).

  • The average snowfall in January: 7"

The month with the highest snowfall is March (10.7").
Months with the lowest snowfall are June, July and August (0").

  • The 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).

  • The average daylight in January: 10h

Months with the longest days are June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The 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).

  • The 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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