August weather forecast
Ruby, VA

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Weather in August

The last month of the summer, August, is another hot month in Ruby, Virginia, with an average temperature ranging between max 86.2°F (30.1°C) and min 66°F (18.9°C).

Temperature

The commencement of August brings an average high-temperature of a still hot 86.2°F (30.1°C), marking an inconsequential divergence from July. In the month of August, Ruby records a consistent average low-temperature of 66°F (18.9°C).

Heat index

The heat index value during August is estimated at a sweltering 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can potentially boost the heat index 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. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Ruby, the average relative humidity in August is 75%.

Rainfall

August is the month with the most rainfall in Ruby, Virginia. Rain falls for 16 days and accumulates 3.66" (93mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Ruby is 13h and 37min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:41 pm EDT.

Sunshine

The average sunshine in August in Ruby, Virginia, is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Ruby?

The average high-temperature and low-temperature during August are 86.2°F (30.1°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is estimated at 98.6°F (37°C).

What is the average humidity in August in Ruby?

In Ruby, Virginia, the average relative humidity in August is 75%.

What is the rainiest month in Ruby?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.66" (93mm) of precipitation.

How much does it rain in Ruby in August?

In August, in Ruby, the rain falls for 16 days. Throughout August, 3.66" (93mm) of precipitation is accumulated.

When it does not snow in Ruby?

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

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

In August, the average day length in Ruby, Virginia, is 13h and 37min.

When are sunrise and sunset in August in Ruby?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:20 pm. On the last day of the month, in Ruby, sunrise is at 6:39 am and sunset at 7:41 pm EDT.

How long on average sun shines in August in Ruby?

The average sunshine duration in August in Ruby, Virginia, is 10h.

When is the highest UV index in Ruby?

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

What is the UV index reading in August in Ruby?

In August, the average daily maximum UV index in Ruby, Virginia, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Ruby, VA

Average temperature in August - Ruby, VA
  • Average high temperature in August: 86.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in August
Ruby, VA

Average pressure in August - Ruby, 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
Ruby, VA

Average wind speed in August - Ruby, VA
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Ruby, VA

Average humidity in August - Ruby, VA
  • Average humidity in August: 75%

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

Average rainfall in August
Ruby, VA

Average rainfall in August - Ruby, VA
  • Average rainfall in August: 3.66"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in August
Ruby, VA

Average rainfall days in August - Ruby, VA
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in August
Ruby, VA

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

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Ruby, VA

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

The month with the highest number of snowfall days is January (4.9 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
Ruby, VA

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Ruby, VA

Average sunshine days in August - Ruby, VA
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in August
Ruby, VA

Average UV index in August - Ruby, 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, November and December (UV index 2).

Average cloud cover in August
Ruby, VA

Average cloud cover in August - Ruby, VA
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Ruby, VA

Average visibility in August - Ruby, VA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Ruby, Virginia, USA

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