August weather forecastWinchester, AR
August
Weather in August
August, the last month of the summer in Winchester, is another tropical month, with temperature in the range of an average low of 71.8°F (22.1°C) and an average high of 89.4°F (31.9°C).Temperature
August ushers in an average high-temperature of a still tropical 89.4°F (31.9°C), aligning closely with the preceding month. The average temperature drops to an agreeable 71.8°F (22.1°C) during the night in the month of August.Heat index
August's mean heat index is estimated at a blistering 107.6°F (42°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Winchester, Arkansas, the average relative humidity in August is 74%.Rainfall
In August, the rain falls for 15.3 days. Throughout August, 2.95" (75mm) of precipitation is accumulated. In Winchester, during the entire year, the rain falls for 152.6 days and collects up to 40.12" (1019mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Winchester, the average length of the day in August is 13h and 22min.On the first day of August, sunrise is at 6:18 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:32 pm CDT.
Sunshine
In Winchester, the average sunshine in August is 10.4h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 during August leads to these advisories:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Winchester, AR
- Average high temperature in August: 89.4°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in August: 71.8°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in August
Winchester, AR
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Winchester, AR
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in August
Winchester, AR
- Average humidity in August: 74%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in August
Winchester, AR
- Average rainfall in August: 2.95"
The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in August
Winchester, AR
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is October (8.6 days).
Average snowfall in August
Winchester, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Winchester, AR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Winchester, AR
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Winchester, AR
- Average sunshine days in August: 13.5 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in August
Winchester, AR
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in August
Winchester, AR
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in August
Winchester, AR
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





