Average Weather in August in Cheyenne Oklahoma, United States
Daily high temperatures decrease by 4°F, from 94°F to 90°F, rarely falling below 80°F or exceeding 102°F.
Daily low temperatures decrease by 4°F, from 71°F to 68°F, rarely falling below 60°F or exceeding 77°F.
For reference, on July 23, the hottest day of the year, temperatures in Cheyenne typically range from 72°F to 95°F, while on January 4, the coldest day of the year, they range from 27°F to 49°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in August
The month of August in Cheyenne experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 28% throughout the month. The highest chance of overcast or mostly cloudy conditions is 29% on August 12.
The clearest day of the month is August 28, with clear, mostly clear, or partly cloudy conditions 73% of the time.
For reference, on February 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 42%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
Cloud Cover Categories in August
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Cheyenne, the chance of a wet day over the course of August is essentially constant, remaining around 25% throughout.
For reference, the year's highest daily chance of a wet day is 36% on June 7, and its lowest chance is 6% on January 11.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Cheyenne is essentially constant, remaining about 2.1 inches throughout, and rarely exceeding 4.1 inches or falling below 0.3 inches.
Average Monthly Rainfall in August
Over the course of August in Cheyenne, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 59 minutes, implying an average daily decrease of 1 minute, 58 seconds, and weekly decrease of 13 minutes, 43 seconds.
The shortest day of the month is August 31, with 12 hours, 56 minutes of daylight and the longest day is August 1, with 13 hours, 55 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Cheyenne is 6:47 AM on August 1 and the latest sunrise is 23 minutes later at 7:10 AM on August 31.
The latest sunset is 8:42 PM on August 1 and the earliest sunset is 36 minutes earlier at 8:06 PM on August 31.
Daylight saving time is observed in Cheyenne during 2021, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:23 AM and sets 14 hours, 34 minutes later, at 8:57 PM, while on December 21, the shortest day of the year, it rises at 7:44 AM and sets 9 hours, 45 minutes later, at 5:29 PM.
Sunrise & Sunset with Twilight in August
The figure below presents a compact representation of key lunar data for August 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in August
The chance that a given day will be muggy in Cheyenne is decreasing during August, falling from 34% to 25% over the course of the month.
For reference, on July 3, the muggiest day of the year, there are muggy conditions 38% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Cheyenne is essentially constant during August, remaining within 0.2 miles per hour of 10.2 miles per hour throughout.
For reference, on April 4, the windiest day of the year, the daily average wind speed is 13.1 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 10.0 miles per hour.
The lowest daily average wind speed during August is 10.0 miles per hour on August 12.
Average Wind Speed in August
The hourly average wind direction in Cheyenne throughout August is predominantly from the south, with a peak proportion of 68% on August 1.
Wind Direction in August
The growing season in Cheyenne typically lasts for 7.0 months (214 days), from around April 2 to around November 2, rarely starting before March 12 or after April 21, and rarely ending before October 13 or after November 20.
The month of August in Cheyenne is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Cheyenne are rapidly increasing during August, increasing by 860°F, from 2,866°F to 3,726°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Cheyenne is gradually decreasing during August, falling by 0.8 kWh, from 6.9 kWh to 6.1 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Cheyenne are 35.614 deg latitude, -99.671 deg longitude, and 1,969 ft elevation.
The topography within 2 miles of Cheyenne contains only modest variations in elevation, with a maximum elevation change of 233 feet and an average elevation above sea level of 1,990 feet. Within 10 miles contains only modest variations in elevation (741 feet). Within 50 miles contains significant variations in elevation (1,634 feet).
The area within 2 miles of Cheyenne is covered by grassland (76%) and cropland (22%), within 10 miles by grassland (91%), and within 50 miles by grassland (75%) and cropland (22%).
This report illustrates the typical weather in Cheyenne, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Cheyenne.
For each station, the records are corrected for the elevation difference between that station and Cheyenne according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Cheyenne is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Cheyenne and a given station.
The stations contributing to this reconstruction are: Clinton-Sherman Airport (47%, 51 kilometers, southeast); Hemphill County Airport (27%, 73 kilometers, northwest); and Gage Airport (26%, 77 kilometers, north).
Time zones for airports and weather stations are provided by AskGeo.com .