October weather forecast and climate
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 October

October, like September, is a frosty autumn month in Aspen, Colorado, with average temperature varying between 24.6°F (-4.1°C) and 46°F (7.8°C).

Temperature

In Aspen, Colorado, the average high-temperature plummets, from a comfortable 61°F (16.1°C) in September, to a chilly 46°F (7.8°C). The average low-temperature, in Aspen, is 24.6°F (-4.1°C).

Humidity

In October, the average relative humidity in Aspen is 65%.

Rainfall

In Aspen, during October, the rain falls for 5.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Aspen, during the entire year, the rain falls for 72.4 days and collects up to 4.33" (110mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Aspen, during 5.3 snowfall days, 1.81" (46mm) of snow is typically accumulated. Throughout the year, there are 83.2 snowfall days, and 19.45" (494mm) of snow is accumulated.

Daylight

In Aspen, the average length of the day is 11.1h.

Sunshine

The average sunshine in Aspen is 7h.

UV index

In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in October in Aspen?

In Aspen, the average relative humidity in October is 65%.

How much does it rain in Aspen in October?

In Aspen, in October, it is raining for 5.3 days, with typically 0.31" (8mm) of accumulated precipitation.

How many days does it snow in October in Aspen?

In Aspen, Colorado, during October, snow falls for 5.3 days and regularly aggregates up to 1.81" (46mm) of snow.

How many hours of daylight does Aspen have in October?

The average length of the day in October is 11.1h.

How many hours of sunshine does Aspen have in October?

In Aspen, the average sunshine in October is 7h.

What is the UV index intensity in October in Aspen?

In Aspen, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV rays.

Average temperature in October
Aspen, CO

Average temperature in October - Aspen, CO
  • Average high temperature in October: 46°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 October: 24.6°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 October
Aspen, CO

Average pressure in October - Aspen, CO
  • Average pressure in October: 30.07"

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 October
Aspen, CO

Average wind speed in October - Aspen, CO
  • Average wind speed in October: 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 October
Aspen, CO

Average humidity in October - Aspen, CO
  • Average humidity in October: 65%

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 October
Aspen, CO

Average rainfall in October - Aspen, CO
  • Average rainfall in October: 0.31"

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 October
Aspen, CO

Average rainfall days in October - Aspen, CO
  • Average rainfall days in October: 5.3 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 October
Aspen, CO

Average snowfall in October - Aspen, CO
  • Average snowfall in October: 1.81"

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 October
Aspen, CO

Average snowfall days in October - Aspen, CO
  • Average snowfall days in October: 5.3 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 October /
Average sunshine in October
Aspen, CO

Average daylight in October / Average sunshine in October - Aspen, CO
  • Average daylight in October: 11.1h

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 October: 7h

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 October
Aspen, CO

Average sunshine days in October - Aspen, CO
  • Average sunshine days in October: 22.9 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 October
Aspen, CO

Average UV index in October - Aspen, CO
  • Average UV index in October: 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 October
Aspen, CO

Average cloud cover in October - Aspen, CO
  • Average cloud cover in October: 22

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 October
Aspen, CO

Average visibility in October - Aspen, CO
  • Average visibility in October: 6mi

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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