October weather forecast and climate
Cheyenne, WY

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, like September, is another mild autumn month in Cheyenne, Wyoming, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 38.3°F (3.5°C).

Temperature

In Cheyenne, the average high-temperature significantly decreases, from a moderately hot 73.8°F (23.2°C) in September, to a mild 57.2°F (14°C). The average low-temperature, in October, is 38.3°F (3.5°C).

Humidity

In Cheyenne, the average relative humidity 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

Months with snowfall are January through May, October through December. October is the first month it typically snows. 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

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

Sunshine

In Cheyenne, Wyoming, the average sunshine is 7.3h.

UV index

The average daily maximum UV index in Cheyenne is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Cheyenne?

In Cheyenne, Wyoming, in October, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 38.3°F (3.5°C).

What is the average humidity in October in Cheyenne?

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

How many days does it rain in October in Cheyenne?

In Cheyenne, Wyoming, in October, during 8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When does it start snowing in Cheyenne?

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

How many hours of daylight does Cheyenne have in October?

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

How many hours of sunshine does Cheyenne have in October?

The average sunshine in October in Cheyenne is 7.3h.

What is the UV index intensity in October in Cheyenne?

The average daily maximum UV index in October in Cheyenne, Wyoming, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.

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"

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

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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").
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).
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: 11.1h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in October: 7.3h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is February (Average sunshine: 6.5h).

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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

Months with the highest UV index are July and August (UV index 6).
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

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

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

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