Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Collinsville's shift into August is marked by a subtle change to a still hot 90.1°F (32.3°C) from July's 91°F (32.8°C) in temperature. Throughout August, Collinsville encounters an average temperature drop to a pleasant 70°F (21.1°C).Heat index
August's average heat index is estimated at a blistering 105.8°F (41°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
January, August and October, with an average relative humidity of 68%, are the least humid months.Rainfall
In Collinsville, in August, it is raining for 12.9 days, with typically 3.31" (84mm) of accumulated precipitation. In Collinsville, during the entire year, the rain falls for 132.6 days and collects up to 29.69" (754mm) of precipitation.Snowfall
In Collinsville, snow does not fall in April through October.Daylight
In August, the average length of the day is 13h and 30min.On the first day of August, sunrise is at 6:30 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:52 pm CDT.
Sunshine
In August, the average sunshine is 10.9h.UV index
In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 6 during August, leads to the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Collinsville, OK
- Average high temperature in August: 90.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in August: 70°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in August
Collinsville, OK
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Collinsville, OK
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Collinsville, OK
- Average humidity in August: 68%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, August and October (68%).
Average rainfall in August
Collinsville, OK
- Average rainfall in August: 3.31"
The wettest month (with the highest rainfall) is May (5.28").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in August
Collinsville, OK
- Average rainfall days in August: 12.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in August
Collinsville, OK
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Collinsville, OK
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Collinsville, OK
- Average daylight in August: 13h and 3min
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 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in August
Collinsville, OK
- Average sunshine days in August: 15.8 days
The months with the most sunshine days are January and December (21.9 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in August
Collinsville, OK
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Collinsville, OK
- Average cloud cover in August: 21
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in August
Collinsville, 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).
Collinsville, Oklahoma, USA
Weather forecast for your location
2. Allow the app to use your location