January weather forecast
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 January

January, the same as December, is another cold winter month in Cheyenne, Wyoming, with an average temperature varying between 36.9°F (2.7°C) and 22.3°F (-5.4°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still wintry 36.9°F (2.7°C). In January, in Cheyenne, the average low-temperature is 22.3°F (-5.4°C).

Humidity

In Cheyenne, the average relative humidity in January is 61%.

Rainfall

The month with the least rainfall is January, when the rain falls for 4.7 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Cheyenne, during January, snow falls for 8.9 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, there are 62 snowfall days, and 30.51" (775mm) of snow is accumulated.

Daylight

In Cheyenne, the average length of the day in January is 9h and 37min.
On the first day of January in Cheyenne, Wyoming, sunrise is at 7:24 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:14 pm MST.

Sunshine

The average sunshine in January is 6.8h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cheyenne. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to 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 the 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 average humidity in January in Cheyenne?

The average relative humidity in January in Cheyenne is 61%.

What is the driest month in Cheyenne?

January is the month with the least rainfall in Cheyenne. Rain falls for 4.7 days and accumulates 0.43" (11mm) of precipitation.

How many days does it rain in January in Cheyenne?

In Cheyenne, Wyoming, in January, it is raining for 4.7 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in Cheyenne in January?

In Cheyenne, in January, during 8.9 snowfall days, 2.28" (58mm) of snow is typically accumulated.

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

In January, the average day length in Cheyenne, Wyoming, is 9h and 37min.

What time are sunrise and sunset in January in Cheyenne?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:14 pm MST.

How many hours of sunshine does Cheyenne have in January?

In January, the average sunshine duration in Cheyenne is 6.8h.

What is the month with the lowest UV index in Cheyenne?

The months with the lowest UV index in Cheyenne, Wyoming, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Cheyenne?

In Cheyenne, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Cheyenne, WY

Average temperature in January - Cheyenne, WY
  • Average high temperature in January: 36.9°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 January: 22.3°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 January
Cheyenne, WY

Average pressure in January - Cheyenne, WY
  • Average pressure in January: 30.14"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 January
Cheyenne, WY

Average wind speed in January - Cheyenne, WY
  • Average wind speed in January: 14.2mph

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 January
Cheyenne, WY

Average humidity in January - Cheyenne, WY
  • Average humidity in January: 61%

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 January
Cheyenne, WY

Average rainfall in January - Cheyenne, WY
  • Average rainfall in January: 0.43"

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 January
Cheyenne, WY

Average rainfall days in January - Cheyenne, WY
  • Average rainfall days in January: 4.7 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 January
Cheyenne, WY

Average snowfall in January - Cheyenne, WY
  • Average snowfall in January: 2.28"

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 January
Cheyenne, WY

Average snowfall days in January - Cheyenne, WY
  • Average snowfall days in January: 8.9 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 January /
Average sunshine in January
Cheyenne, WY

Average daylight in January / Average sunshine in January - Cheyenne, WY
  • Average daylight in January: 9h and 37min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 16min).

  • Average sunshine in January: 6h and 48min

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 January
Cheyenne, WY

Average sunshine days in January - Cheyenne, WY
  • Average sunshine days in January: 20.7 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 January
Cheyenne, WY

Average UV index in January - Cheyenne, WY
  • Average UV index in January: 2

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 January
Cheyenne, WY

Average cloud cover in January - Cheyenne, WY
  • Average cloud cover in January: 26

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 January
Cheyenne, WY

Average visibility in January - Cheyenne, WY
  • Average visibility in January: 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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