August weather forecastSiloam Springs, AR
August
Weather in August
The last leg of summer in August sees temperatures in Siloam Springs maintain the heat rhythm, just a notch lower than July. Precipitation fluctuates again, reaching 3.66" (93mm), perhaps nature's reminder of the upcoming transition to a cooler season. The lowering heat is also signaled by a slight drop in the UV Index to 6, making the weather more bearable. Winds dally at a passive speed not influencing the weather much. As summer winds down, long daylight hours still thrive, illuminating the city well into the evening.Temperature
With the arrival of August, Siloam Springs's average high-temperature registers at a still hot 88.5°F (31.4°C), indicating a subtle variation from the previous month. The average temperature in Siloam Springs drops to a pleasant 68°F (20°C) during the night in the month of August.Heat index
The heat index value during August is appraised at a very hot 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The months with the lowest humidity are August and October, with an average relative humidity of 71%.Rainfall
In Siloam Springs, during August, the rain falls for 15.6 days and regularly aggregates up to 3.66" (93mm) of precipitation. In Siloam Springs, during the entire year, the rain falls for 156 days and collects up to 34.41" (874mm) of precipitation.Snowfall
April, June through October are months without snowfall.Daylight
In Siloam Springs, the average length of the day in August is 13h and 29min.On the first day of August, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:46 pm CDT.
Sunshine
With an average of 10.7h of sunshine, August has the most sunshine of the year.UV index
In Siloam Springs, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Siloam Springs, AR
- Average high temperature in August: 88.5°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in August: 68°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in August
Siloam Springs, AR
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in August
Siloam Springs, AR
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Siloam Springs, AR
- Average humidity in August: 71%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in August
Siloam Springs, AR
- Average rainfall in August: 3.66"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in August
Siloam Springs, AR
- Average rainfall days in August: 15.6 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in August
Siloam Springs, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in August
Siloam Springs, AR
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Siloam Springs, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in August
Siloam Springs, AR
- Average sunshine days in August: 12.7 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in August
Siloam Springs, AR
- Average UV index in August: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in August
Siloam Springs, AR
- Average cloud cover in August: 24
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in August
Siloam Springs, 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).
