August weather forecast
Fairfax, OH

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Weather in August

August, the last month of the summer in Fairfax, is another warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 64.2°F (17.9°C).

Temperature

The shift into August reveals an average high-temperature of a still warm 83.8°F (28.8°C), closely mirroring July's climate. Fairfax's August nights cool down to an average low-temperature of 64.2°F (17.9°C).

Heat index

The heat index in August is evaluated at a tropical 91.4°F (33°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

August through October, with an average relative humidity of 74%, are the least humid months.

Rainfall

In Fairfax, in August, it is raining for 13.6 days, with typically 1.97" (50mm) of accumulated precipitation. In Fairfax, during the entire year, the rain falls for 150.9 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Fairfax, the average length of the day in August is 13h and 39min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

Sunshine

In Fairfax, the average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Fairfax. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

Is it hot during August?

The high-temperature, in August, in Fairfax, records 83.8°F (28.8°C), while the low-temperature is 64.2°F (17.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 91.4°F (33°C).

What is the least humid month?

The months with the lowest humidity in Fairfax, Ohio, are August through October, with an average relative humidity of 74%.

What is the average humidity in August?

In Fairfax, the average relative humidity in August is 74%.

How much does it rain in August?

In Fairfax, in August, it is raining for 13.6 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Fairfax have in August?

The average day length in August is 13h and 39min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:38 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

How long on average sun shines in August in Fairfax?

The average sunshine duration in August is 10.2h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Fairfax, OH

Average temperature in August - Fairfax, OH
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in August
Fairfax, OH

Average pressure in August - Fairfax, OH
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Fairfax, OH

Average wind speed in August - Fairfax, OH
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Fairfax, OH

Average humidity in August - Fairfax, OH
  • Average humidity in August: 74%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in August
Fairfax, OH

Average rainfall in August - Fairfax, OH
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Fairfax, OH

Average rainfall days in August - Fairfax, OH
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in August
Fairfax, OH

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

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Fairfax, OH

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

The months with the highest number of snowfall days are January and February (5.5 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
Fairfax, OH

Average daylight in August / Average sunshine in August - Fairfax, OH
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Fairfax, OH

Average sunshine days in August - Fairfax, OH
  • Average sunshine days in August: 15 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in August
Fairfax, OH

Average UV index in August - Fairfax, OH
  • Average UV index in August: 6

The months with the highest UV index are May, 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
Fairfax, OH

Average cloud cover in August - Fairfax, OH
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Fairfax, OH

Average visibility in August - Fairfax, OH
  • 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, Ohio, USA

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