Average Weather in August in Dierks Arkansas, United States
Daily high temperatures decrease by 2°F, from 93°F to 91°F, rarely falling below 83°F or exceeding 100°F.
Daily low temperatures decrease by 3°F, from 71°F to 69°F, rarely falling below 61°F or exceeding 76°F.
For reference, on July 30, the hottest day of the year, temperatures in Dierks typically range from 72°F to 93°F, while on January 7, the coldest day of the year, they range from 34°F to 53°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 Dierks experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 32% throughout the month.
The clearest day of the month is August 3, with clear, mostly clear, or partly cloudy conditions 69% of the time.
For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.
Cloud Cover Categories in August
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dierks, the chance of a wet day over the course of August is gradually decreasing, starting the month at 29% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 41% on May 15, and its lowest chance is 22% on January 13.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Dierks is essentially constant, remaining about 2.7 inches throughout, and rarely exceeding 5.6 inches or falling below 0.6 inches.
The lowest average 31-day accumulation is 2.5 inches on August 16.
Average Monthly Rainfall in August
Over the course of August in Dierks, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 55 minutes, implying an average daily decrease of 1 minute, 51 seconds, and weekly decrease of 12 minutes, 56 seconds.
The shortest day of the month is August 31, with 12 hours, 54 minutes of daylight and the longest day is August 1, with 13 hours, 50 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Dierks is 6:27 AM on August 1 and the latest sunrise is 22 minutes later at 6:48 AM on August 31.
The latest sunset is 8:16 PM on August 1 and the earliest sunset is 34 minutes earlier at 7:43 PM on August 31.
Daylight saving time is observed in Dierks during 2018, 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 6:04 AM and sets 14 hours, 26 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 7:17 AM and sets 9 hours, 53 minutes later, at 5:10 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Dierks is rapidly decreasing during August, falling from 90% to 73% over the course of the month.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 92% of the time, while on January 20, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
The average hourly wind speed in Dierks is essentially constant during August, remaining within 0.1 miles per hour of 3.6 miles per hour throughout.
For reference, on March 31, the windiest day of the year, the daily average wind speed is 5.4 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 3.4 miles per hour.
The lowest daily average wind speed during August is 3.4 miles per hour on August 3.
Average Wind Speed in August
Wind Direction in August
The growing season in Dierks typically lasts for 7.5 months (229 days), from around March 24 to around November 7, rarely starting before March 1 or after April 16, and rarely ending before October 18 or after December 1.
The month of August in Dierks 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 Dierks are rapidly increasing during August, increasing by 862°F, from 3,177°F to 4,039°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Dierks is gradually decreasing during August, falling by 0.8 kWh, from 6.7 kWh to 5.9 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 Dierks are 34.119 deg latitude, -94.017 deg longitude, and 482 ft elevation.
The topography within 2 miles of Dierks contains only modest variations in elevation, with a maximum elevation change of 315 feet and an average elevation above sea level of 466 feet. Within 10 miles contains only modest variations in elevation (587 feet). Within 50 miles contains significant variations in elevation (2,503 feet).
The area within 2 miles of Dierks is covered by trees (64%) and cropland (30%), within 10 miles by trees (84%) and cropland (14%), and within 50 miles by trees (68%) and cropland (25%).
This report illustrates the typical weather in Dierks year round, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Dierks.
For each station, the records are corrected for the elevation difference between that station and Dierks 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 Dierks is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Dierks and a given station.
The stations contributing to this reconstruction are: J Lynn Helms Airport (38%, 36 kilometers, west); Mena Intermountain Municipal Airport (21%, 50 kilometers, north); Mount Ida (17%, 62 kilometers, northeast); Texarkana Regional Airport (13%, 74 kilometers, south); and Arkadelphia, Dexter B Florence Memorial Field Airport (10%, 88 kilometers, east).
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Time zones for aiports and weather stations are provided by AskGeo.com .