August weather forecastForistell, MO
August
Weather in August
The last month of the summer, August, is another tropical month in Foristell, Missouri, with temperature in the range of an average high of 86°F (30°C) and an average low of 65.8°F (18.8°C).Temperature
August's arrival brings an average high-temperature of a still tropical 86°F (30°C), slightly deviating from July's 87.4°F (30.8°C). Foristell's average low-temperature in August is measured at a comfortable 65.8°F (18.8°C).Heat index
August's average heat index is evaluated at a torrid 96.8°F (36°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Heat index data is primarily for areas with shade and subjected to light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In Foristell, the average relative humidity in August is 75%.Rainfall
In Foristell, during August, the rain falls for 14.3 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Foristell, during the entire year, the rain falls for 145 days and collects up to 30.04" (763mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 13h and 38min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:35 pm CDT.
Sunshine
In Foristell, the average sunshine in August is 10.2h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in August translates into this advice:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Foristell, MO
- Average high temperature in August: 86°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in August
Foristell, MO
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Foristell, MO
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in August
Foristell, MO
- Average humidity in August: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Foristell, MO
- Average rainfall in August: 3.07"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in August
Foristell, MO
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in August
Foristell, MO
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Foristell, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.3 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
Foristell, MO
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Foristell, MO
- Average sunshine days in August: 14.5 days
The months with the most sunshine days are January, October and December (19.5 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in August
Foristell, MO
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Foristell, MO
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in August
Foristell, MO
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
