August weather forecastHenderson, AR
August
Weather in August
August, the last month of the summer in Henderson, is also a hot month, with an average temperature varying between 89.8°F (32.1°C) and 66.9°F (19.4°C).Temperature
Henderson marks the start of August with an average high-temperature of a still tropical 89.8°F (32.1°C), hinting at a slight fluctuation from July's 90.9°F (32.7°C). Henderson, amid August nights, sees a noteworthy disparity from daily highs with an average temperature of 66.9°F (19.4°C).Heat index
For August, the heat index is calculated to be a blisteringly hot 107.6°F (42°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.In terms of the heat index, values are set with light wind and shade conditions in mind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
July, August and October, with an average relative humidity of 73%, are the least humid months in Henderson.Rainfall
In August, in Henderson, the rain falls for 14.6 days. Throughout August, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 155.8 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Henderson.Daylight
In August, the average length of the day in Henderson is 13h and 30min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:14 pm. On the last day of August, in Henderson, Arkansas, sunrise is at 6:40 am and sunset at 7:37 pm CDT.
Sunshine
In Henderson, the average sunshine in August is 10.2h.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 vulnerability from unsafe exposure to UV radiation for average individuals.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Henderson, AR
- Average high temperature in August: 89.8°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in August: 66.9°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in August
Henderson, 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 (29.93"Hg).
Average wind speed in August
Henderson, AR
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in August
Henderson, AR
- Average humidity in August: 73%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in August
Henderson, AR
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in August
Henderson, AR
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in August
Henderson, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Henderson, AR
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Henderson, 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 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in August
Henderson, AR
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is December (18.6 days).
The months with the least sunshine days are May and July (11.7 days).
Average UV index in August
Henderson, 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
Henderson, AR
- Average cloud cover in August: 30
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Henderson, AR
- Average visibility in August: 5mi
The months with the highest visibility are February, June, October, November and December (6mi).
The months with the lowest visibility are January, March, April, May, July, August and September (5mi).
