August weather forecast
Farnham, VA

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Weather in August

August, the last month of the summer in Farnham, is also a hot month, with an average temperature fluctuating between 68.2°F (20.1°C) and 86°F (30°C).

Temperature

Farnham in August witnesses an average high-temperature of a still hot 86°F (30°C), indicating a slight variation from July's 88.3°F (31.3°C). An average low-temperature of 68.2°F (20.1°C) is expected in Farnham, Virginia, during August.

Heat index

Throughout August, the heat index is appraised at a sweltering 98.6°F (37°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In August, the average relative humidity is 76%.

Rainfall

The month with the most rainfall is August, when the rain falls for 15.2 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

May through October are months without snowfall in Farnham, Virginia.

Daylight

In August, the average length of the day is 13h and 35min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:36 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, an average UV index of 6 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Farnham?

An average high-temperature, in August, in Farnham, is 86°F (30°C) and the average low-temperature is 68.2°F (20.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in August in Farnham?

In Farnham, Virginia, the average relative humidity in August is 76%.

What is the rainiest month in Farnham?

August is the month with the most rainfall in Farnham, Virginia. Rain falls for 15.2 days and accumulates 3.19" (81mm) of precipitation.

How many days does it rain in August in Farnham?

In Farnham, Virginia, in August, during 15.2 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow in Farnham?

May through October are months without snowfall in Farnham.

How many hours of daylight does Farnham have in August?

In August, the average day length in Farnham, Virginia, is 13h and 35min.

When is the sunrise / sunset in August in Farnham?

On the first day of August in Farnham, sunrise is at 6:10 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:36 pm EDT.

How many hours of sunshine does Farnham have in August?

In August, the average sunshine duration is 10.2h.

When is the highest UV index in Farnham?

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

What is the UV index intensity in August in Farnham?

The average daily maximum UV index in August in Farnham is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Farnham, VA

Average temperature in August - Farnham, VA
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in August
Farnham, VA

Average pressure in August - Farnham, VA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Farnham, VA

Average wind speed in August - Farnham, VA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Farnham, VA

Average humidity in August - Farnham, VA
  • Average humidity in August: 76%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in August
Farnham, VA

Average rainfall in August - Farnham, VA
  • Average rainfall in August: 3.19"

The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Farnham, VA

Average rainfall days in August - Farnham, VA
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in August
Farnham, VA

Average snowfall in August - Farnham, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Farnham, VA

Average snowfall days in August - Farnham, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.7 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
Farnham, VA

Average daylight in August / Average sunshine in August - Farnham, VA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in August
Farnham, VA

Average sunshine days in August - Farnham, VA
  • Average sunshine days in August: 13.5 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in August
Farnham, VA

Average UV index in August - Farnham, VA
  • 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 and December (UV index 2).

Average cloud cover in August
Farnham, VA

Average cloud cover in August - Farnham, VA
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Farnham, VA

Average visibility in August - Farnham, VA
  • 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).

Farnham, Virginia, USA

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