August Weather in Cheyenne, United States

Last updated: June 24, 2025

In August, the average temperature in Cheyenne, United States reaches a pleasant 21°C (70°F). Expect to experience a minimum of 6°C (43°F), while highs can soar to 34°C (94°F). During this month, you'll encounter 33 mm (1.3 in) of precipitation spread over 6 days, contributing to an average humidity of 84%. Enjoy the diverse weather conditions this season has to offer!

August Temperature in Cheyenne

In August in Cheyenne, the average temperature is 21°C (70°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This varied climate makes it an ideal destination for travelers looking to experience a mix of warm days and cooler evenings.

August Weather in Cheyenne: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Cheyenne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cheyenne, August typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).

Data source: Temperature data for Cheyenne generated using information from the Copernicus Climate Change Service.

August Precipitation in Cheyenne

In Cheyenne, in August, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

August Precipitation Trends in Cheyenne

The chart displays monthly precipitation patterns in Cheyenne, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Cheyenne, August typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Cheyenne

In Cheyenne in August, humidity is 84%. With an average temperature of 21°C (70°F), this humidity feels like thick, warm air wrapping around you, making outdoor activities quite uncomfortable and necessitating frequent hydration breaks for a more enjoyable travel experience.

August Average Humidity in Cheyenne

This chart illustrates the average monthly humidity levels in Cheyenne, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Cheyenne is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Cheyenne

In Cheyenne in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Cheyenne.

Maximum UV Index Levels in Cheyenne for August

The chart shows the monthly maximum UV Index (UVI) for Cheyenne in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Cheyenne typically reaches 11, which falls under the extreme exposure category.

Data source: Cheyenne August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Cheyenne Compares to Other Months

Weather in Cheyenne varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Cheyenne, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Cheyenne, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	15 mm (0.6 inches)	72%	moderate
February Weather	-2°C (28°F)	22 mm (0.9 inches)	76%	high
March Weather	3°C (37°F)	55 mm (2.2 inches)	61%	high
April Weather	6°C (43°F)	52 mm (2.1 inches)	60%	very high
May Weather	11°C (52°F)	106 mm (4.2 inches)	74%	very high
June Weather	19°C (66°F)	48 mm (1.9 inches)	82%	extreme
July Weather	22°C (72°F)	36 mm (1.4 inches)	82%	extreme
August Weather	21°C (70°F)	33 mm (1.3 inches)	84%	extreme
September Weather	17°C (63°F)	20 mm (0.8 inches)	75%	very high
October Weather	8°C (46°F)	38 mm (1.5 inches)	73%	high
November Weather	4°C (40°F)	25 mm (1.0 inches)	74%	moderate
December Weather	0°C (33°F)	18 mm (0.7 inches)	77%	moderate