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Contents
- The climate of Cheyenne
- The best time to visit Cheyenne
- The worst time to visit Cheyenne
- Spring weather in Cheyenne
- Summer weather in Cheyenne
- Autumn weather in Cheyenne
- Winter weather in Cheyenne
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
A sunny day in front of the State Capitol building in Cheyenne, Wyoming
The climate of Cheyenne
Cheyenne, the capital of Wyoming, USA, is located in the mid-latitude steppe zone, classified as BSk by the Köppen climate system. Throughout the year, the city experiences a clear differentiation in seasons, with higher temperatures during the summer months, usually from May until September, and colder temperatures during the winter season, typically from November through March.
Analysing the temperature variation, the highest temperature in the year reaches up to 82.4°F (28°C), observed in July, while the lowest temperature drops down to 20.3°F (-6.5°C) in December. Humidity levels tend to fluctuate modestly, between 43% in August to 64% in February, indicating a relatively dry atmosphere, consistent with the city’s mid-latitude steppe climate.
With regards to precipitation, the city faces a distinct wet and dry season. The highest level of rainfall occurs in May, approximating 2.95" (75mm) over 17.5 days, making it the wettest month of the year. In contrast, December sees the lowest level of rainfall, around 0.59" (15mm) during the course of 5.5 days. Intriguingly, Cheyenne also experiences snowfall in some parts of the year, with heavy snowfalls of up to 6.06" (154mm) in seven months, primarily from October to April.
Moving on, the amount of sunlight seen by the city also varies from a high of 15.1 hours in June, to a low of 9.3 hours in December. Similarly, the sunshine hours range from a maximum of 11.6 hours in July and August, to a minimum of 6.5 hours in February.
Analysing the temperature variation, the highest temperature in the year reaches up to 82.4°F (28°C), observed in July, while the lowest temperature drops down to 20.3°F (-6.5°C) in December. Humidity levels tend to fluctuate modestly, between 43% in August to 64% in February, indicating a relatively dry atmosphere, consistent with the city’s mid-latitude steppe climate.
With regards to precipitation, the city faces a distinct wet and dry season. The highest level of rainfall occurs in May, approximating 2.95" (75mm) over 17.5 days, making it the wettest month of the year. In contrast, December sees the lowest level of rainfall, around 0.59" (15mm) during the course of 5.5 days. Intriguingly, Cheyenne also experiences snowfall in some parts of the year, with heavy snowfalls of up to 6.06" (154mm) in seven months, primarily from October to April.
Moving on, the amount of sunlight seen by the city also varies from a high of 15.1 hours in June, to a low of 9.3 hours in December. Similarly, the sunshine hours range from a maximum of 11.6 hours in July and August, to a minimum of 6.5 hours in February.
The best time to visit Cheyenne
Cheyenne offers its most pleasant weather during the summer months of June, July, and August. During these months, the city experiences the highest temperatures, ranging from 77.4°F (25.2°C) to 82.4°F (28°C), making it perfect for outdoor activities. Likewise, these months see the longest daylight durations, approximately 14.8 to 15.1 hours, and maximum sunshine durations, approximately 11.5 to 11.6 hours, providing ample opportunity to explore the city’s beauty in broad daylight.
The worst time to visit Cheyenne
Winter months could be considered less ideal for a visit, specifically from December to February. During these months, Cheyenne experiences lower temperatures, dropping to as low as 20.3°F (-6.5°C). The city also has less daylight during these months, with light durations between 9.3 hours to 10.7 hours, and reduced sunshine hours between 6.5 hours to 6.8 hours.
Spring weather in Cheyenne
The start of spring in March is accompanied by a rise in temperatures, from 53.8°F (12.1°C) to 62.4°F (16.9°C). Rainfall increases significantly from 1.42" (36mm) in March to 2.95" (75mm) in May, spanning over an increasing number of days from 9.7 to 17.5. However, snowfall levels decline from 5.79" (147mm) in March to zero by the end of the season. Daylight hours lengthen from 12 hours in March to 14.5 hours in May.
Summer weather in Cheyenne
The summer weather remains relatively stable, with temperatures ranging from 77.4°F (25.2°C) to 82.4°F (28°C) and a drop in rainfall levels to 1.5" (38mm) by July. The length of daylight peaks at 15.1 hours in June, with sunshine hours also reaching their peak of 11.6 hours in July and August.
Autumn weather in Cheyenne
Autumn sees a significant drop in temperatures, from 73.8°F (23.2°C) in September to 45.9°F (7.7°C) in November. Rainfall levels remain relatively stable, fluctuating from 0.87" (22mm) in September to 0.75" (19mm) in November, spread across decreasing number of days. Daylight hours start to decrease from 12.5 hours in September to 9.9 hours by the end of November.
Winter weather in Cheyenne
Winter brings colder temperatures ranging from 34.7°F (1.5°C) in December to 36.9°F (2.7°C) in February. Rainfall sees a slight decrease to 0.59" (15mm) in December and then slightly increases to 0.71" (18mm) in February. Snowfall starts to appear in the weather records, peaking at 6.06" (154mm) in February. The daylight hours remain relatively low, between 9.3 hours and 10.7 hours, throughout the winter.
Weather in January
As the year commences, Cheyenne, Wyoming experiences rather cold conditions. Still reeling from the winter chill of December, contrary to transition expectations, weather patterns do not fluctuate substantially. The most minimal temperatures of the year, dipping from 22.3°F (-5.4°C) to 36.9°F (2.7°C), still prevail. Weather in January »
Weather in February
Moving from January into February, Cheyenne's weather sees minimal changes; days remain on the colder side despite the relatively warmer temperatures. Snug weather continues throughout this month, with common cloud cover casting an overcast hue. Weather in February »
Weather in March
By March, winter loosens its grip on Cheyenne, leading to a gradual shift in the weather. The chilly air slowly starts to warm, with temperatures showing an upward trend. Relative humidity reduces by 7% compared to January's levels. Weather in March »
Weather in April
With April's arrival, the snow recedes further, yielding to sprouting greens as Cheyenne bids farewell to winter. The city welcomes spring and its quintessential blooms. A striking feature of this month is that the highest rainfall is observed, with averages of up to 2.24" (57mm). Weather in April »
Weather in May
May sees the weather transition significantly, bringing warmth and higher humidity index which translates into more colorful sceneries. This marked change in climate indicates that the colder days have passed. Sunlight persists for longer, contributing to the blooming flora eagerly basking under it. Weather in May »
Weather in June
Cheyenne ushers in full-blown summer in June, displaying vibrant hues and higher temperatures, invigorating the city's spirit. The most prolonged daylight hours of the year with up to 15.1 hours dominate this month. As the heat soars to the year's peak of 77.4°F (25.2°C), residents revel in the sunny skies and warm weather. Weather in June »
Weather in July
July holds its reputation as the hottest month in Cheyenne, Wyoming. The blazing sun remains the central feature of this period, with temperatures rising to 82.4°F (28°C). However, the weather remains pleasant as the humidity is relatively low, promoting agreeable conditions. Weather in July »
Weather in August
August serves as a gentle reminder that summer is not perpetual as the temperature begins to fall slightly, yet it still remains quite warm. In August, Cheyenne boasts the lowest average cloud cover of 19%, proposing clear skies and extended sunshine. Weather in August »
Weather in September
Following the warmth of August, September brings a definitive shift in Cheyenne's weather pattern. A noticeable decrease in daylight and temperature signals the advent of autumn. The slightly cooler weather means that leaves start changing colors, dressing the city in shades of orange, yellow, and red. Weather in September »
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. Weather in October »
Weather in November
November holds the gateway to winter, with dropping temperature and increasing snowfall. The city experiences an overall slowdown, with colder days and longer nights. The transitioning landscape provides unique beauty, combining the colors of fall with the purity of winter. Weather in November »
Weather in December
As the curtain of the year begins to close, December sets in with its cold winter weather. The days get considerably shorter, and frost embellishes the windows. With a maximum temperature barely making to 34.7°F (1.5°C), the holiday season is consumed in the enveloping chill. Weather in December »
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the driest month?
January is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.43" (11mm) of precipitation.
How much does it rain?
In Cheyenne, during the entire year, the rain falls for 116 days and collects up to 14.57" (370mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 62 snowfall days, and 30.51" (775mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the most humid month?
With an average relative humidity of 64%, February is the most humid month.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 6.5h of sunshine.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 9.2 days and accumulates 6.06" (154mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 2.95" (75mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What time of the year is the hottest?
In Cheyenne, July records the average highest temperatures, peaking at 82.4°F (28°C) and reaching a low of 59.9°F (15.5°C).
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 11.6h of sunshine.
When is the highest UV index?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
What is the least humid month in Cheyenne?
The least humid month is August, with an average relative humidity of 43%.
What time of the year is the coldest?
In Cheyenne, December is the month with the lowest recorded average temperatures, measuring a high of 34.7°F (1.5°C) and a low of 20.3°F (-6.5°C).
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Cheyenne, WY
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).
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).
Average pressure
Cheyenne, WY
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
29.98"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.13"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).
Average wind speed
Cheyenne, WY
- Average wind speed in January:
14.2mph - Average wind speed in February:
13mph - Average wind speed in March:
12.6mph - Average wind speed in April:
12.4mph - Average wind speed in May:
10.4mph - Average wind speed in June:
9.8mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
8.7mph - Average wind speed in September:
9.6mph - Average wind speed in October:
11.8mph - Average wind speed in November:
12.5mph - Average wind speed in December:
13.1mph
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).
Average humidity
Cheyenne, WY
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).
Average rainfall
Cheyenne, WY
- Average rainfall in January:
0.43" - Average rainfall in February:
0.71" - Average rainfall in March:
1.42" - Average rainfall in April:
2.24" - Average rainfall in May:
2.95" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.5" - Average rainfall in August:
0.83" - Average rainfall in September:
0.87" - Average rainfall in October:
0.91" - Average rainfall in November:
0.75" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Cheyenne, WY
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
9.7 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.7 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
8 days - Average rainfall days in November:
5 days - Average rainfall days in December:
5.5 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).
Average snowfall
Cheyenne, WY
- Average snowfall in January:
2.28" - Average snowfall in February:
4.37" - Average snowfall in March:
6.06" - Average snowfall in April:
5.79" - Average snowfall in May:
3.43" - Average snowfall in June:
0"
The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Cheyenne, WY
- Average snowfall days in January:
8.9 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
9.2 days - Average snowfall days in April:
8.2 days - Average snowfall days in May:
3.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
3.5 days - Average snowfall days in November:
8 days - Average snowfall days in December:
9.6 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).
Average daylight / Average sunshine
Cheyenne, WY
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 January:
6h and 5min - Average sunshine in February:
6h and 3min - Average sunshine in March:
8h and 3min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 2min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 4min - Average sunshine in October:
7h and 2min - Average sunshine in November:
7h and 0min - Average sunshine in December:
6h and 4min
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).
Average sunshine days
Cheyenne, WY
- Average sunshine days in January:
20.7 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
9.9 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
19 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
19 days - Average sunshine days in December:
19.5 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).
Average UV index
Cheyenne, WY
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).
Average cloud cover
Cheyenne, WY
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).
Average visibility
Cheyenne, WY
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).
Cheyenne, Wyoming, USA
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