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
July and August are the warmest months, with an average high-temperature of 93.9°F (34.4°C).Heat index
August's heat index is evaluated at a blisteringly hot 107.6°F (42°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. 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 highly critical to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
August is the least humid month, with an average relative humidity of 58%.Rainfall
In August, the rain falls for 11.4 days. Throughout August, 1.93" (49mm) of precipitation is accumulated. In Foster, during the entire year, the rain falls for 119.9 days and collects up to 24.65" (626mm) of precipitation.Snowfall
May through October are months without snowfall in Foster.Daylight
In Foster, the average length of the day in August is 13h and 25min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:31 pm. On the last day of August, sunrise is at 7:02 am and sunset at 7:57 pm CDT.
Sunshine
In Foster, Oklahoma, the average sunshine in August is 11h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
How hot is it in August?
What is the least humid month?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Foster have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Foster have in August?
What are the months with the highest UV index?
How high is the UV index in August?
Average temperature in August
Foster, OK
- Average high temperature in August: 93.9°F
The warmest months (with the highest average high temperature) are July and August (93.9°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in August: 72.5°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in August
Foster, OK
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Foster, OK
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in August
Foster, OK
- Average humidity in August: 58%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (58%).
Average rainfall in August
Foster, OK
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.06").
Average rainfall days in August
Foster, OK
- Average rainfall days in August: 11.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in August
Foster, OK
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Foster, OK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (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
Foster, OK
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 11h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in August
Foster, OK
- Average sunshine days in August: 16.5 days
The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in August
Foster, 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
Foster, OK
- Average cloud cover in August: 18
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in August
Foster, 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).
Foster, Oklahoma, USA
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