October weather forecast
Littleton, CO

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The hilly slopes on the South Platte River during the fall, large rocks, and stones in the river below
The hilly slopes on the South Platte River during the fall, large rocks, and stones in the river below

Weather in October

October in Littleton, Colorado, experiences a sharp turn in the weather, with cool temperatures dipping to 62.4°F (16.9°C), marking the arrival of the chilly season. A considerable decline in temperatures and daylight hours create an unmistakable semblance of the onset of winter. Although rain levels remain moderate, a distinct addition of 4.21" (107mm) of snow over 2.5 days indicates the transitional weather phase. The brisk, sometimes chilly breeze, combined with the red-orange hue of falling leaves, makes for a picturesque fall season.

Temperature

Littleton's weather in October is characterized by a distinct drop in the average high-temperature, reducing from a warm 77.7°F (25.4°C) in September to a refreshing 62.4°F (16.9°C). Contrasted against daytime highs, Littleton records an average nighttime low of 38.8°F (3.8°C) in October.

Humidity

The average relative humidity in October in Littleton is 47%.

Rainfall

In Littleton, during October, the rain falls for 4.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Littleton, Colorado, during the entire year, the rain falls for 101.2 days and collects up to 11.89" (302mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in Littleton. Throughout October, in the average 2.5 snowfall days, it receives 4.21" (107mm) of snow. In Littleton, during the entire year, snow falls for 42.7 days and aggregates up to 34.92" (887mm) of snow.

Daylight

In October, the average length of the day in Littleton is 11h and 8min.
On the first day of October in Littleton, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:59 pm MDT.

Sunshine

In October, the average sunshine in Littleton is 7.5h.

UV index

In October, the average daily maximum UV index in Littleton is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 3 during October leads to these instructions:
Act with care - The need to guard against sun damage is communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What are the temperatures in Littleton in October?

During October, Littleton experiences an average high-temperature of 62.4°F (16.9°C) and a low-temperature of 38.8°F (3.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 84.2°F (29°C).

What is the average humidity in October in Littleton?

The average relative humidity in October in Littleton is 47%.

How many days does it rain in October in Littleton?

In Littleton, in October, during 4.8 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When does it start to snow in Littleton?

October is the first month it typically snows in Littleton. Throughout October, in the average 2.5 snowfall days, it receives 4.21" (107mm) of snow.

What is the average length of the day in October in Littleton?

In October, the average day length in Littleton is 11h and 8min.

What time are sunrise and sunset in October in Littleton?

On the first day of October, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:59 pm MDT.

How long on average sun shines in October in Littleton?

In October, the average sunshine duration in Littleton is 7.5h.

How high is the UV index in October in Littleton?

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Littleton, CO

Average temperature in October - Littleton, CO
  • Average high temperature in October: 62.4°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (41°F).

  • Average low temperature in October: 38.8°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is December (21°F).

Average pressure in October
Littleton, CO

Average pressure in October - Littleton, CO
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

Average wind speed in October
Littleton, CO

Average wind speed in October - Littleton, CO
  • Average wind speed in October: 6.2mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (6mph).

Average humidity in October
Littleton, CO

Average humidity in October - Littleton, CO
  • Average humidity in October: 47%

The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June and August (41%).

Average rainfall in October
Littleton, CO

Average rainfall in October - Littleton, CO
  • Average rainfall in October: 0.75"

The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in October
Littleton, CO

Average rainfall days in October - Littleton, CO
  • Average rainfall days in October: 4.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (3 days).

Average snowfall in October
Littleton, CO

Average snowfall in October - Littleton, CO
  • Average snowfall in October: 4.21"

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Littleton, CO

Average snowfall days in October - Littleton, CO
  • Average snowfall days in October: 2.5 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in October /
Average sunshine in October
Littleton, CO

Average daylight in October / Average sunshine in October - Littleton, CO
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 7h and 3min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).

Average sunshine days in October
Littleton, CO

Average sunshine days in October - Littleton, CO
  • Average sunshine days in October: 22.6 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (10 days).

Average UV index in October
Littleton, CO

Average UV index in October - Littleton, CO
  • Average UV index in October: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Littleton, CO

Average cloud cover in October - Littleton, CO
  • Average cloud cover in October: 17

The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 14).

Average visibility in October
Littleton, CO

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

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Littleton, Colorado, USA

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