January weather forecast
Aspen, CO

The icy Maroon Bells in the Elk Mountains viewed from the White River below
The icy Maroon Bells in the Elk Mountains viewed from the White River below

Weather in January

January, like December, is another subzero cold winter month in Aspen, Colorado, with average temperature varying between 24.4°F (-4.2°C) and 2.1°F (-16.6°C).

Temperature

The coldest months are January and December, with an average high-temperature of 24.4°F (-4.2°C).

Humidity

In January, the average relative humidity in Aspen is 89%.

Rainfall

In Aspen, it is raining for 2.8 days, with typically 0.28" (7mm) of accumulated precipitation. In Aspen, Colorado, during the entire year, the rain falls for 72.4 days and collects up to 4.33" (110mm) of precipitation.

Snowfall

Months with snowfall in Aspen are January through June, September through December. In January, in Aspen, it is snowing for 10.4 days. Throughout January, 2.13" (54mm) of snow is accumulated. Throughout the year, there are 83.2 snowfall days, and 19.45" (494mm) of snow is accumulated.

Daylight

The average length of the day in January is 9.8h.

Sunshine

In Aspen, the average sunshine in January is 5.5h.

UV index

The average daily maximum UV index in Aspen is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Aspen?

January and December, with an average high-temperature of 24.4°F (-4.2°C), are the coldest months in Aspen, Colorado.

What is the average humidity in January in Aspen?

In January, the average relative humidity is 89%.

How many days does it rain in January in Aspen?

In January, in Aspen, the rain falls for 2.8 days. Throughout January, 0.28" (7mm) of precipitation is accumulated.

How much does it snow in Aspen in January?

In Aspen, Colorado, in January, during 10.4 snowfall days, 2.13" (54mm) of snow is typically accumulated.

How many hours of daylight does Aspen have in January?

In January, the average length of the day in Aspen is 9.8h.

How long on average sun shines in January in Aspen?

In January, the average sunshine in Aspen, Colorado, is 5.5h.

How high is the UV index in January in Aspen?

In January, the average daily maximum UV index in Aspen, Colorado, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in January
Aspen, CO

Average temperature in January - Aspen, CO
  • Average high temperature in January: 24.4°F

The warmest month (with the highest average high temperature) is July (69.4°F).
Months with the lowest average high temperature are January and December (24.4°F).

  • Average low temperature in January: 2.1°F

The month with the highest average low temperature is July (40.5°F).
The coldest month (with the lowest average low temperature) is January (2.1°F).

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Average pressure in January
Aspen, CO

Average pressure in January - Aspen, CO
  • Average pressure in January: 30.23"

The month with the highest atmospheric pressure is January (30.23").
Months with the lowest atmospheric pressure are April and May (29.95").

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Average wind speed in January
Aspen, CO

Average wind speed in January - Aspen, CO
  • Average wind speed in January: 4.5mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and August (4.5mph).

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Average humidity in January
Aspen, CO

Average humidity in January - Aspen, CO
  • Average humidity in January: 89%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is June (51%).

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Average rainfall in January
Aspen, CO

Average rainfall in January - Aspen, CO
  • Average rainfall in January: 0.28"

The wettest months (with the highest rainfall) are March and July (0.51").
The driest month (with the least rainfall) is September (0.2").

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Average rainfall days in January
Aspen, CO

Average rainfall days in January - Aspen, CO
  • Average rainfall days in January: 2.8 days

The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in January
Aspen, CO

Average snowfall in January - Aspen, CO
  • Average snowfall in January: 2.13"

The month with the highest snowfall is March (3.98").
Months with the least snowfall are July and August (0").

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Average snowfall days in January
Aspen, CO

Average snowfall days in January - Aspen, CO
  • Average snowfall days in January: 10.4 days

The month with the highest number of snowfall days is February (12.8 days).
Months with the least snowfall days are July and August (0.1 days).

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Average daylight in January /
Average sunshine in January
Aspen, CO

Average daylight in January / Average sunshine in January - Aspen, CO
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 5.5h

The month with the most sunshine is June (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 5.2h).

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Average sunshine days in January
Aspen, CO

Average sunshine days in January - Aspen, CO
  • Average sunshine days in January: 23.5 days

The month with the most sunshine days is November (23.6 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in January
Aspen, CO

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

Months with the highest UV index are June, July and August (UV index 4).
Months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in January
Aspen, CO

Average cloud cover in January - Aspen, CO
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in January
Aspen, CO

Average visibility in January - Aspen, CO
  • Average visibility in January: 4mi

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March and December (4mi).

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