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
Saint Louis's August weather reaches an average high of 92.5°F (33.6°C) and an average low of 71.2°F (21.8°C), making it the warmest month.Heat index
Throughout August, the heat index is estimated at a blisteringly hot 107.6°F (42°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The least humid month is August, with an average relative humidity of 63%.Rainfall
In Saint Louis, during August, the rain falls for 10.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 111.2 rainfall days, and 17.13" (435mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In August, the average length of the day is 13h and 26min.On the first day of August, sunrise is at 6:37 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:55 pm CDT.
Sunshine
August has the most sunshine of the year, with an average of 11.1h of sunshine.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index in Saint Louis, Oklahoma. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In August, the UV index of 7 transforms into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are the warmest months in Saint Louis?
How hot does it get in Saint Louis in August?
What is the least humid month in Saint Louis?
What is the average humidity in August in Saint Louis?
How much does it rain in Saint Louis in August?
When it does not snow in Saint Louis?
What is the average length of the day in August in Saint Louis?
When are sunrise and sunset in August in Saint Louis?
What month has the most sunshine in Saint Louis?
How many hours of sunshine does Saint Louis have in August?
What is the month with the highest UV index in Saint Louis?
How high is the UV index in August in Saint Louis?
Average temperature in August
Saint Louis, OK
- Average high temperature in August: 92.5°F
The warmest month (with the highest average high temperature) is August (92.5°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in August: 71.2°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in August
Saint Louis, 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 (29.89"Hg).
Average wind speed in August
Saint Louis, OK
- Average wind speed in August: 7.5mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in August
Saint Louis, OK
- Average humidity in August: 63%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (63%).
Average rainfall in August
Saint Louis, OK
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in August
Saint Louis, OK
- Average rainfall days in August: 10.7 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in August
Saint Louis, OK
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Saint Louis, OK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.8 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
Saint Louis, OK
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 11h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Saint Louis, OK
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is January (24 days).
The months with the least sunshine days are April, May and September (15.9 days).
Average UV index in August
Saint Louis, OK
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Saint Louis, OK
- Average cloud cover in August: 20
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
Saint Louis, 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).
Saint Louis, Oklahoma, USA
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