August weather forecastHarrison, AR
August
Weather in August
August continues the summer period in Harrison, sustaining high temperatures from July but slightly lower at 88°F (31.1°C). The persistent summer heat results in increased water consumption and swimming pool dips. Despite lesser rainfall than July, the month still witnesses enough showers to retain ample greenery and freshness. The advent of August indicates the close of summer, with activities transitioning towards indoor and late evening engagements. As sunshine hours begin to shorten, a change commences, gradually leading towards cooler days in the not so distant future.Temperature
The shift into August in Harrison uncovers an average high-temperature of a still tropical 88°F (31.1°C), subtly different from the previous month. Harrison logs a considerable temperature decrease from the daytime highs during the nights in August, with an average reading of 66.4°F (19.1°C).Heat index
In August, the average heat index is calculated to be a torrid 102.2°F (39°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Harrison, the average relative humidity in August is 74%.Rainfall
In Harrison, in August, during 15.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Harrison, during the entire year, the rain falls for 145.4 days and collects up to 31.73" (806mm) of precipitation.Snowfall
In Harrison, snow does not fall in June through October.Daylight
The average length of the day in August in Harrison is 13h and 29min.On the first day of August, sunrise is at 6:19 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:41 pm CDT.
Sunshine
The average sunshine in August in Harrison, Arkansas, is 10.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harrison, AR
- Average high temperature in August: 88°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in August: 66.4°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in August
Harrison, AR
- Average pressure in August: 29.98"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
Harrison, AR
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Harrison, AR
- Average humidity in August: 74%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January and October (73%).
Average rainfall in August
Harrison, AR
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in August
Harrison, AR
- Average rainfall days in August: 15.7 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is December (7.5 days).
Average snowfall in August
Harrison, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Harrison, AR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Harrison, AR
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 30min).
Average sunshine days in August
Harrison, AR
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in August
Harrison, AR
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in August
Harrison, AR
- Average cloud cover in August: 28
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in August
Harrison, AR
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





