August weather forecast
Stillwater, OK

Despite seeing a slight dip in temperature from July, August remains significantly hot in Stillwater. The city continues to experience long, hot days and moderately high humidity levels. Even though Autumn is on the horizon, August's weather is comparably as warm as July's. The average maximum temperature sits at a hot 92.3°F (33.5°C), giving August the second-highest average temperatures of the year.

Temperature

August notes an average high-temperature of a still tropical 92.3°F (33.5°C), subtly differing from July's 93°F (33.9°C). Stillwater encounters a steady low-temperature average of 70.9°F (21.6°C) throughout the month of August.

Heat index

During August, the heat index is appraised at an extremely hot 107.6°F (42°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. 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 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The least humid month in Stillwater, Oklahoma, is August, with an average relative humidity of 62%.

Rainfall

In Stillwater, during August, the rain falls for 12.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Stillwater, during the entire year, the rain falls for 121.4 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Stillwater, Oklahoma, the average length of the day in August is 13h and 29min.
On the first day of August in Stillwater, sunrise is at 6:36 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:56 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 11.2h of sunshine.

UV index

The months with the highest UV index in Stillwater are June through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 during August translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.