August weather forecast
Foster, OK

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Weather in August

August, the last month of the summer in Foster, is another hot month, with an average temperature ranging between min 72.5°F (22.5°C) and max 93.9°F (34.4°C).

Temperature

July and August are known as Foster's warmest months, with an average high-temperature of 93.9°F (34.4°C).

Heat index

In August, the average heat index is evaluated at a scorching 107.6°F (42°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

August is the least humid month in Foster, with an average relative humidity of 58%.

Rainfall

In Foster, in August, it is raining for 11.4 days, with typically 1.93" (49mm) of accumulated precipitation. 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 August, the average length of the day is 13h and 25min.
On the first day of August, sunrise is at 6:40 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:57 pm CDT.

Sunshine

In August, the average sunshine 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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: During August, 7 as the daily maximum UV index converts into the following advice:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What part of the year is the hottest in Foster?

Foster's average highest temperatures are recorded in July and August, reaching a high of 93.9°F (34.4°C).

How hot is it in Foster in August?

The average high-temperature and low-temperature during August are 93.9°F (34.4°C) and 72.5°F (22.5°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 107.6°F (42°C).

What is the least humid month in Foster?

August is the least humid month, with an average relative humidity of 58%.

What is the average humidity in August in Foster?

The average relative humidity in August in Foster is 58%.

How many days does it rain in August in Foster?

In Foster, in August, during 11.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow in Foster?

In Foster, snow does not fall in May through October.

What is the average length of the day in August in Foster?

In Foster, Oklahoma, the average day length in August is 13h and 25min.

What time are sunrise and sunset in August in Foster?

On the first day of August in Foster, sunrise is at 6:40 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 7:57 pm CDT.

How many hours of sunshine does Foster have in August?

In August, the average sunshine duration in Foster is 11h.

What are the months with the highest UV index in Foster?

The months with the highest UV index in Foster are June through August, with an average maximum UV index of 7.

What is the UV index reading in August in Foster?

The average daily maximum UV index in August in Foster, Oklahoma, is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Foster, OK

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).

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Average pressure in August
Foster, OK

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).

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Average wind speed in August
Foster, OK

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).

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Average humidity in August
Foster, OK

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%).

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Average rainfall in August
Foster, OK

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").

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Average rainfall days in August
Foster, OK

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).

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Average snowfall in August
Foster, OK

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").

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Average snowfall days in August
Foster, OK

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).

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Average daylight in August /
Average sunshine in August
Foster, OK

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).

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Average sunshine days in August
Foster, OK

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).

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Average UV index in August
Foster, OK

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).

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Average cloud cover in August
Foster, OK

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).

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Average visibility in August
Foster, OK

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).

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Foster, Oklahoma, USA

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