Monthly 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 January

January, the same as December, is another cold winter month in Cheyenne, Wyoming, with average temperature fluctuating between 36.9°F (2.7°C) and 22.3°F (-5.4°C). In Cheyenne, the average high-temperature is essentially the same as in December - a still cold 36.9°F (2.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Cheyenne, Wyoming, with average temperature varying between 37°F (2.8°C) and 21°F (-6.1°C). In February, the average high-temperature is almost the same as in January - a still cold 37°F (2.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Cheyenne, is a frosty month, with average temperature varying between 47.5°F (8.6°C) and 29.7°F (-1.3°C). In March, the average high-temperature increases, from a wintry 37°F (2.8°C) in February, to a chilly 47.5°F (8.6°C). Weather in March »

Weather in April

April in Cheyenne, Wyoming, is a fresh spring month, with temperature in the range of an average low of 34.5°F (1.4°C) and an average high of 53.8°F (12.1°C). In April, the average high-temperature marginally rises, from a chilly 47.5°F (8.6°C) in March, to a fresh 53.8°F (12.1°C). Weather in April »

Weather in May

May, the last month of the spring, in Cheyenne, is a comfortable month, with average temperature fluctuating between 42.3°F (5.7°C) and 62.4°F (16.9°C). In Cheyenne, the average high-temperature slightly increases, from a cool 53.8°F (12.1°C) in April, to a comfortable 62.4°F (16.9°C). Weather in May »

Weather in June

June, the first month of the summer, in Cheyenne, is a warm month, with average temperature varying between 77.4°F (25.2°C) and 53.6°F (12°C). In Cheyenne, the average high-temperature soars, from an enjoyable 62.4°F (16.9°C) in May, to a moderately hot 77.4°F (25.2°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Cheyenne, Wyoming, with average temperature ranging between max 82.4°F (28°C) and min 59.9°F (15.5°C). The warmest month is July, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 59.9°F (15.5°C). The average heat index is appraised at 82.8°F (28.2°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Cheyenne, Wyoming, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 58.5°F (14.7°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 81.1°F (27.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Cheyenne, Wyoming, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 73.8°F (23.2°C). In Cheyenne, the average high-temperature in September slightly decreases, from 81.1°F (27.3°C) in August, to a still warm 73.8°F (23.2°C). Weather in September »

Weather in October

October, the same as September, in Cheyenne, Wyoming, is a moderate autumn month, with average temperature varying between 57.2°F (14°C) and 38.3°F (3.5°C). In Cheyenne, the average high-temperature in October declines considerably, from a warm 73.8°F (23.2°C) in September, to a mild 57.2°F (14°C). Weather in October »

Weather in November

November, the last month of the autumn, in Cheyenne, is another chilly month, with average temperature ranging between min 29.1°F (-1.6°C) and max 45.9°F (7.7°C). In Cheyenne, the average high-temperature in November drops, from a moderate 57.2°F (14°C) in October, to a chilly 45.9°F (7.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Cheyenne, Wyoming, with average temperature varying between 34.7°F (1.5°C) and 20.3°F (-6.5°C). December is the coldest month, with an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 20.3°F (-6.5°C). Weather in December »
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FAQ

How many days does it rain in Cheyenne?

In Cheyenne, during the entire year, the rain falls for 116 days and collects up to 14.57" (370mm) of precipitation.

What is the driest month in Cheyenne?

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

When does it snow in Cheyenne?

January through May, October through December are months with snowfall in Cheyenne, Wyoming.

How much does it snow in Cheyenne?

In Cheyenne, during the entire year, snow falls for 62 days, and aggregates up to 30.51" (775mm) of snow.

What are the months with the lowest UV index in Cheyenne?

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

What is the most humid month in Cheyenne?

February is the most humid month in Cheyenne, with an average relative humidity of 64%.

What is the month with the least sunshine in Cheyenne?

With an average of 6.5h of sunshine, February has the least sunshine of the year in Cheyenne, Wyoming.

When does it snow the most in Cheyenne?

The month with the most snowfall in Cheyenne is March when snow falls for 9.2 days and typically aggregates up to 6.06" (154mm) of snow.

What is the rainiest month in Cheyenne?

The month with the most rainfall is May when the rain falls for 17.5 days and typically aggregates up to 2.95" (75mm) of precipitation.

When it does not snow in Cheyenne?

In Cheyenne snow does not fall in June through September.

When are the longest days in Cheyenne?

June has the longest days of the year in Cheyenne, Wyoming, with an average of 15.1h of daylight.

What is the warmest month in Cheyenne?

With an average high-temperature of 82.4°F (28°C) and an average low-temperature of 59.9°F (15.5°C), July is the warmest month.

What is the month with the most sunshine in Cheyenne?

Months with the most sunshine are July and August, with an average of 11.6h of sunshine.

When is the highest UV index in Cheyenne?

Months with the highest UV index in Cheyenne are July and August, with an average maximum UV index of 6.

What is the least humid month in Cheyenne?

With an average relative humidity of 43%, August is the least humid month in Cheyenne.

What is the coldest month in Cheyenne?

December is the coldest month, with an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 20.3°F (-6.5°C).

What is the month with the shortest days in Cheyenne?

The month with the shortest days in Cheyenne, Wyoming, is December, with an average of 9.3h of daylight.

Average pressure
Cheyenne, WY

Average pressure - Cheyenne, WY

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).

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Average wind speed
Cheyenne, WY

Average wind speed - Cheyenne, WY

The windiest month (with the highest average wind speed) is January (22.8km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).

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Average rainfall
Cheyenne, WY

Average rainfall - Cheyenne, WY

The wettest month (with the highest rainfall) is May (75mm).
The driest month (with the least rainfall) is January (11mm).

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Average rainfall days
Cheyenne, WY

Average rainfall days - Cheyenne, WY

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
Cheyenne, WY

Average snowfall - Cheyenne, WY

The month with the highest snowfall is March (154mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days
Cheyenne, WY

Average snowfall days - Cheyenne, WY

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 / Average sunshine
Cheyenne, WY

Average daylight / Average sunshine - Cheyenne, WY

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

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
Cheyenne, WY

Average sunshine days - Cheyenne, WY

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
Cheyenne, WY

Average UV index - Cheyenne, WY

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 visibility
Cheyenne, WY

Average visibility - Cheyenne, WY

Months with the highest visibility are June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, May, November and December (9km).

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