Cheyenne
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

August 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
August in Cheyenne remains warm and pleasant, with up to twelve hours of sunshine per day. 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).
The rainy days remain steady at eleven, and the rain gauge collects 2.2" (55.9mm) in precipitation.
Touring Cheyenne prolongs late into the evening with the extended daylight hours making tours more adventurous.

What is the temperature in August in Cheyenne?

In August, in Cheyenne, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 54.1°F (12.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines both air temperature and relative humidity, in August is calculated to 82°F (27.8°C).

What is the average humidity in August in Cheyenne?

In Cheyenne, Wyoming, the average relative humidity in August is 51.4%.

How much does it rain in Cheyenne in August?

In Cheyenne, in August, during 11 rainfall days, 1.9" (49.5mm) of precipitation is typically accumulated.

Does it snow in Cheyenne in August?

In Cheyenne, Wyoming, in August, it doesn't snow. In September, it regularly snows.

When it does not snow in Cheyenne?

June through August are months without snowfall in Cheyenne, Wyoming.

How many hours of daylight does Cheyenne have in August?

In Cheyenne, the average length of the day in August is 13.8h.

How many hours of sunshine does Cheyenne have in August?

In Cheyenne, Wyoming, the average sunshine in August is 9.6h.

How high is the UV index in August in Cheyenne?

In August, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in August - Cheyenne, WY
  • Average high temperature in August: 81.2°F

The warmest month (with the highest average high temperature) is July (83.4°F).
The month with the lowest average high temperature is December (38.2°F).

  • Average low temperature in August: 54.1°F

The month with the highest average low temperature is July (55.5°F).
The coldest month (with the lowest average low temperature) is December (17.3°F).

Average humidity in August - Cheyenne, WY
  • Average humidity in August: 51.4%

The month with the highest relative humidity is March (56.1%).
The month with the lowest relative humidity is October (50%).

Average rainfall in August - Cheyenne, WY
  • Average rainfall in August: 2"

Wettest months (with the highest rainfall) are May and June (2.3").
The driest month (with the lowest rainfall) is January (0.3").

Average rainfall days in August - Cheyenne, WY
  • Average rainfall days in August: 11 days

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 in August - Cheyenne, WY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (11.3").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in August - Cheyenne, WY
  • Average snowfall days in August: 0 days

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 in August / Average sunshine in August - Cheyenne, WY
  • Average daylight in August: 13.8h

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

  • Average sunshine in August: 9.6h

The month with most sunshine is July (Average sunshine: 10.2h).
The month with least sunshine is December (Average sunshine: 5.7h).

Average UV index in August - Cheyenne, WY
  • Average UV index in August: 9

Months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 1).