August weather forecast
Fairfax, OK

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Weather in August

August, the last month of the summer in Fairfax, is another hot month, with an average temperature fluctuating between 69.6°F (20.9°C) and 90.3°F (32.4°C).

Temperature

Fairfax experiences a minor change to a still hot 90.3°F (32.4°C) in average high-temperature during August, closely reflecting July. The temperature lowers to an average of 69.6°F (20.9°C) during August nights.

Heat index

For August, the heat index is evaluated at a blistering 104°F (40°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In August, the average relative humidity is 66%.

Rainfall

In August, the rain falls for 10.6 days. Throughout August, 1.46" (37mm) of precipitation is accumulated. In Fairfax, during the entire year, the rain falls for 97.1 days and collects up to 10.87" (276mm) of precipitation.

Snowfall

In Fairfax, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 31min.
On the first day of the month, sunrise is at 6:33 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:57 am and sunset at 7:55 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 11.2h of sunshine.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 in August translates into these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

How hot does it get in August?

The average high-temperature and low-temperature during August are 90.3°F (32.4°C) and 69.6°F (20.9°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 104°F (40°C).

What is the average humidity in August?

In Fairfax, the average relative humidity in August is 66%.

How many days does it rain in August?

In Fairfax, in August, it is raining for 10.6 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 31min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:33 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:55 pm CDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.2h of sunshine.

How many hours of sunshine does Fairfax have in August?

The average sunshine duration in August is 11.2h.

When is the highest UV index?

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

What is the UV index reading in August in Fairfax?

The average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Fairfax, OK

Average temperature in August - Fairfax, OK
  • Average high temperature in August: 90.3°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in August: 69.6°F

The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in August
Fairfax, OK

Average pressure in August - Fairfax, 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 (29.87"Hg).

Average wind speed in August
Fairfax, OK

Average wind speed in August - Fairfax, OK
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in August
Fairfax, OK

Average humidity in August - Fairfax, OK
  • Average humidity in August: 66%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (65%).

Average rainfall in August
Fairfax, OK

Average rainfall in August - Fairfax, OK
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is December (0.24").

Average rainfall days in August
Fairfax, OK

Average rainfall days in August - Fairfax, OK
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is May (12.3 days).
The months with the least rainy days are January and December (3.6 days).

Average snowfall in August
Fairfax, OK

Average snowfall in August - Fairfax, OK
  • Average snowfall in August: 0"

The months with the highest snowfall are January, February and March (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Fairfax, OK

Average snowfall days in August - Fairfax, OK
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Fairfax, 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: 11h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).

Average sunshine days in August
Fairfax, OK

Average sunshine days in August - Fairfax, OK
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is January (26.2 days).
The month with the least sunshine days is May (15.8 days).

Average UV index in August
Fairfax, OK

Average UV index in August - Fairfax, OK
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in August
Fairfax, OK

Average cloud cover in August - Fairfax, OK
  • Average cloud cover in August: 20

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in August
Fairfax, OK

Average visibility in August - Fairfax, 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).

Fairfax, Oklahoma, USA

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