October weather forecast
Cheyenne, WY

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A sunny day in front of the State Capitol building in Cheyenne, Wyoming
A sunny day in front of the State Capitol building in Cheyenne, Wyoming

Weather in October

October remains painting the town in hues of fall, while the weather gets noticeably colder. The first signs of winter appear, yet the temperatures are still bearable with recorded maximums lingering at 57.2°F (14°C). Cheyenne steadily transitions towards winter, prompting residents to pull out their winter clothing. The landscapes turn into backdrops worthy of paintings, and harvest season brings a particular brand of joy.

Temperature

A clear decrease in the average high-temperature is observed during October, decreasing from a warm 73.8°F (23.2°C) in September to a refreshing 57.2°F (14°C). Nighttime temperature lowers to an average of 38.3°F (3.5°C) in October.

Humidity

The average relative humidity in October in Cheyenne is 51%.

Rainfall

In Cheyenne, during October, the rain falls for 8 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 116 rainfall days, and 14.57" (370mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Cheyenne. October is the first month it typically snows in Cheyenne, Wyoming. Throughout October, in the average 3.5 snowfall days, it receives 2.17" (55mm) of snow. In Cheyenne, during the entire year, snow falls for 62 days and aggregates up to 30.51" (775mm) of snow.

Daylight

The average length of the day in October is 11h and 5min.
On the first day of the month, sunrise is at 6:56 am and sunset at 6:40 pm. On the last day of October, sunrise is at 7:30 am and sunset at 5:55 pm MDT.

Sunshine

In October, the average sunshine in Cheyenne is 7.3h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are the temperatures in Cheyenne in October?

In October, in Cheyenne, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 38.3°F (3.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 80.6°F (27°C).

What is the average humidity in October in Cheyenne?

In October, the average relative humidity in Cheyenne is 51%.

How many days does it rain in October in Cheyenne?

In Cheyenne, Wyoming, in October, it is raining for 8 days, with typically 0.91" (23mm) of accumulated precipitation.

When does it start snowing in Cheyenne?

October is the first month it typically snows in Cheyenne. Throughout October, in the average 3.5 snowfall days, it receives 2.17" (55mm) of snow.

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

In Cheyenne, the average day length in October is 11h and 5min.

What time are sunrise and sunset in October in Cheyenne?

On the first day of October, sunrise is at 6:56 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:55 pm MDT.

How many hours of sunshine does Cheyenne have in October?

In Cheyenne, the average sunshine duration in October is 7.3h.

What is the UV index intensity in October in Cheyenne?

In October, the average daily maximum UV index in Cheyenne, Wyoming, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Cheyenne, WY

Average temperature in October - Cheyenne, WY
  • Average high temperature in October: 57.2°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).

  • Average low temperature in October: 38.3°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

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Average pressure in October
Cheyenne, WY

Average pressure in October - Cheyenne, WY
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in October
Cheyenne, WY

Average wind speed in October - Cheyenne, WY
  • Average wind speed in October: 11.8mph

The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in October
Cheyenne, WY

Average humidity in October - Cheyenne, WY
  • Average humidity in October: 51%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in October
Cheyenne, WY

Average rainfall in October - Cheyenne, WY
  • Average rainfall in October: 0.91"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in October
Cheyenne, WY

Average rainfall days in October - Cheyenne, WY
  • Average rainfall days in October: 8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).

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Average snowfall in October
Cheyenne, WY

Average snowfall in October - Cheyenne, WY
  • Average snowfall in October: 2.17"

The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Cheyenne, WY

Average snowfall days in October - Cheyenne, WY
  • Average snowfall days in October: 3.5 days

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Cheyenne, WY

Average daylight in October / Average sunshine in October - Cheyenne, WY
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in October: 7h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

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Average sunshine days in October
Cheyenne, WY

Average sunshine days in October - Cheyenne, WY
  • Average sunshine days in October: 19.9 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).

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Average UV index in October
Cheyenne, WY

Average UV index in October - Cheyenne, WY
  • Average UV index in October: 3

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

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Average cloud cover in October
Cheyenne, WY

Average cloud cover in October - Cheyenne, WY
  • Average cloud cover in October: 22

The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).

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Average visibility in October
Cheyenne, WY

Average visibility in October - Cheyenne, WY
  • 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).

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Cheyenne, Wyoming, USA

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