Monthly weather forecast and climate
Cheyenne, WY

A sunny day in the front of the State Capitol building in Cheyenne, Wyoming
A sunny day in the front of the State Capitol building in Cheyenne, Wyoming
Cheyenne, the county seat of Laramie County and the capital of the US State of Wyoming, has a cold semi-arid climate (Köppen classification BSk). The climate is characterized by cold, snowy, and dry winters and warm, sunny, and mildly rainy summers. The Chinooks occasionally tamper with the winter weather, making it moderately warm.

Spring weather in Cheyenne is varied. The first few weeks experience the temperature dropping below the freezing point, to as low as 26.6°F (-3°C). However, gradually, the weather becomes warmer, and the mercury stretches to 68°F (20°C) on average. There is a slight increase in rainfall in the later months of spring. Generally, the days remain mildly cold, sunny, and moderately wet. Expect very minimal crowds in Cheyenne during spring as the weather is still cold. The warm dressing is genuinely recommended.

Summer is experienced from June to August. This is a warm and pleasant period, with a temperature in the tolerable range of 48.2°F (9°C) and 82.4°F (28°C). Sweltering days are rare, but most days remain sunny and occasionally rainy. Summer in Cheyenne is the most frequented by tourists due to pleasant weather, both during the day and at night, appreciative of the elongated daylight hours.

Autumn stretches from September to mid-November. The temperature remains lovely in the first weeks - in the warm range of 44.6°F (7°C), and 71.6°F (22°C) - before dropping well below the freezing point as winter settles. Rainfall is mildly scarce, making most days dry and sunny with approximately nine hours of sunshine per day. The nights are extremely cold, and warm dressing is essential. The first snowfall in Cheyenne is received during autumn.

Winter is extremely cold, with the temperature dropping to as low as 15.8°F (-9°C) on the coldest days. Occasionally there are warm days where the temperature rises to 42.8°F (6°C). There are approximately six snowfall days per month during winter and an average of three rainfall days per month. Weather remains mildly sunny, though, with an average of seven hours of sunshine per day. Except for skating and skiing, other activities remain indoors.
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The best time to visit Cheyenne is during spring, precisely from mid-April to May, and during the fall in September and October.
During spring, the winter chill tones down considerably, and the weather is kindly tolerable. Spring is a great time to engage in outdoor activities while basking in the warm sun. Enjoy the breathtaking beauty in the parks and gardens as trees blossom and disperse beautiful scents all over Cheyenne.
During autumn, Cheyenne experiences the best weather. The reflection of the golden leaves in the water bodies throughout Cheyenne provides a beautiful sight to behold. The temperature drops to tolerable ranges and the heat of summer dies off.
Both seasons have minimal rainfall and more sunshine, reducing any weather interruptions while touring Cheyenne. With a deficit of tourists, Cheyenne has lower rates on most things, minimal congestions, and flights and accommodations are not fully booked.

Summer is not the best time to visit Cheyenne if one expects a peaceful vacation.
The temperature remains warm and pleasant throughout, but considering that all the other seasons are mildly cold, most tourists frequent Cheyenne during summer. This fact translates to huge crowds in the streets and noise everywhere. During summer schools are closed too - one more reason for congestion in Cheyenne. Prices for flights and hotels are higher than usual. Long queues are experienced everywhere, and tourists spill over to sidewalk cafes and parks. Most afternoons during summer, receive rainfall that brings interruptions to most outdoor activities.

January in Cheyenne is the peak of winter and the coldest month of the year. The temperature drops to 15.8°F (-9°C) on the coldest days and rises to a warm 42.8°F (6°C) when the Chinooks arrive. Weather in January »

February in Cheyenne remains cold but experiences a slight increase in the temperature to the range of 19.4°F (-7°C) and 42.8°F (6°C). Weather in February »

March is a transitional month into spring, but Cheyenne continues to experience winter-like weather throughout. The temperature remains in the range of 24.8°F (-4°C) and 51.8°F (11°C). Weather in March »

The first half of April feels cold and still experiences snowfall and frosty nights. Gradually, the weather is warmer and lovelier in the range of 30.2°F (-1°C) and 59°F (15°C). Weather in April »

Cheyenne is magnificent in May. The temperature rises considerably and falls in the range of 39.2°F (4°C) and 68°F (20°C). Weather in May »

June introduces summer to Cheyenne with a rise of the temperature to a warm range between 48.2°F (9°C) and 77°F (25°C). The early mornings and late evenings still feel chilly, but they are generally quite tolerable. Weather in June »

July is the hottest month in Cheyenne. The temperature averages the range of 55.4°F (13°C) and 82.4°F (28°C). Occasionally, the temperature shoots up to 86°F (30°C), but extremely hot days are scarce. Weather in July »

As the summer days are not extremely scorching, basking is typical in Cheyenne. August temperature remains in the range of 55.4°F (13°C) and 80.6°F (27°C). Weather in August »

September transitions Cheyenne into autumn. The weather is characterized by a slight decrease in the temperature to the range of 44.6°F (7°C) and 71.6°F (22°C). Weather in September »

The parks are a great place to enjoy the day as the temperature remains in the range of 37.4°F (3°C) and 62.6°F (17°C). The days stay warm with up to eight hours of sunshine. Weather in October »

The first few days of November are mildly warm but gradually change to cold, dry days with the temperature in the range of 23°F (-5°C) and 50°F (10°C). Weather in November »

December in Cheyenne is quite dry and extremely cold with the temperature in the cold range between 17.6°F (-8°C) and 42.8°F (6°C). Weather in December »
Average temperature - Cheyenne, WY
Average humidity - Cheyenne, WY
Average rainfall - Cheyenne, WY
Average rainfall days - Cheyenne, WY

The month with the highest number of rainy days is May (12.4 days).
The month with the lowest number of rainy days is January (4.9 days).

Average snowfall days - Cheyenne, WY

The month with the highest number of snowfall days is March (7.8 days).
Months with the lowest number of snowfall days are July and August (0 days).

Average daylight / Average sunshine - Cheyenne, WY
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