Climate Overview
The climate in Cheyenne Eagle Butte Airport is cool. The average annual temperature is 8°C and approximately 480mm of precipitation falls per year. May is the wettest month, receiving around 73mm of rainfall. Cheyenne Eagle Butte Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -11°C. Snowfall occurs from January to December, with around 74cm accumulating over the season.
Temperature
Cheyenne Eagle Butte Airport has a wide annual temperature range, spanning 42°C from the coldest to warmest months. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -7°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.
Precipitation
Cheyenne Eagle Butte Airport is a relatively dry area, receiving approximately 480mm of precipitation annually, which averages out to around 40mm per month. The wettest month is May, averaging 73mm of rainfall. June and July also tend to see above-average precipitation. The driest month is January, with just 8mm. That's 64mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 74cm accumulating over the season. December typically sees the most snow at around 17cm.
Wind
Cheyenne Eagle Butte Airport is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 29km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.
Seasons
91 days until Summer
It is currently spring in Cheyenne Eagle Butte Airport, which began on March 20, 2026. Cheyenne Eagle Butte Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in January near -11°C. Summer is next, beginning on June 21, 2026 — 91 days from now.
Spring
Temperatures range from -5 to 21°C. Precipitation is moderate at around 152mm for the season, averaging 51mm per month. Winds are strong, averaging 27km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 15 to 31°C. Precipitation is moderate at around 195mm for the season, averaging 65mm per month. Winds are moderate at around 24km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from -3 to 26°C. Rainfall is relatively light, with around 84mm over the season and a monthly average of 28mm. Expect around 11cm of snow accumulation during this period. Winds are moderate at around 25km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -11 to 1°C. Rainfall is relatively light, with around 49mm over the season and a monthly average of 16mm. Expect around 33cm of snow accumulation during this period. Winds are moderate at around 24km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Cheyenne Eagle Butte Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 58mm per month. By contrast, January can be quite cold with temperatures dropping to -11°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Cheyenne Eagle Butte Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.