August weather forecastSumpter, OK
August
Weather in August
The last month of the summer, August, is also a hot month in Sumpter, Oklahoma, with an average temperature varying between 71.1°F (21.7°C) and 91.6°F (33.1°C).Temperature
The advent of August brings an average high-temperature of a still tropical 91.6°F (33.1°C), almost identical to the preceding month. In Sumpter, August nights witness a steady temperature drop to a pleasant 71.1°F (21.7°C).Heat index
The heat index value during August is appraised at a blisteringly hot 105.8°F (41°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In August, the average relative humidity is 62%.Rainfall
In Sumpter, during August, the rain falls for 12.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Sumpter, there are 116.1 rainfall days, and 21.57" (548mm) of precipitation is accumulated.Snowfall
In Sumpter, snow does not fall in April through September.Daylight
The average length of the day in August in Sumpter is 13h and 32min.On the first day of August, sunrise is at 6:35 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:58 pm CDT.
Sunshine
The month with the most sunshine is August, with an average of 11.3h of sunshine.UV index
The months with the highest UV index in Sumpter are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 7 in August translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sumpter, OK
- Average high temperature in August: 91.6°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in August: 71.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in August
Sumpter, OK
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Sumpter, OK
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in August
Sumpter, OK
- Average humidity in August: 62%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is July (61%).
Average rainfall in August
Sumpter, OK
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in August
Sumpter, OK
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in August
Sumpter, OK
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Sumpter, OK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.4 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
Sumpter, OK
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 11h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).
Average sunshine days in August
Sumpter, OK
- Average sunshine days in August: 15.2 days
The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in August
Sumpter, OK
- 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 and December (UV index 2).
Average cloud cover in August
Sumpter, OK
- Average cloud cover in August: 19
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in August
Sumpter, OK
- 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).





