July weather forecast
Foster, VA

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Weather in July

July in Foster, Virginia, is a tropical summer month, with an average temperature varying between 72.3°F (22.4°C) and 87.8°F (31°C).

Temperature

Foster records the warmest temperatures in July, averaging a high of 87.8°F (31°C) and a low of 72.3°F (22.4°C).

Heat index

July's heat index is computed to be a very hot 100.4°F (38°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

With an average relative humidity of 72%, July is the least humid month.

Rainfall

In Foster, in July, it is raining for 16.9 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 165.3 rainfall days, and 34.25" (870mm) of precipitation is accumulated.

Snowfall

In Foster, Virginia, snow does not fall in April through October.

Daylight

In Foster, the average length of the day in July is 14h and 27min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:30 pm. On the last day of July, sunrise is at 6:09 am and sunset at 8:14 pm EDT.

Sunshine

With an average of 10.8h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during July morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Foster?

The warmest period tends to be July, when average temperatures fluctuate between a high of 87.8°F (31°C) and a low of 72.3°F (22.4°C).

How hot is July?

The high-temperature during July is 87.8°F (31°C) and the low-temperature is 72.3°F (22.4°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 100.4°F (38°C).

What is the least humid month?

With an average relative humidity of 72%, July is the least humid month.

What is the average humidity in July?

The average relative humidity in July is 72%.

How much does it rain in July?

In Foster, in July, it is raining for 16.9 days, with typically 3.31" (84mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Foster have in July?

In July, the average day length is 14h and 27min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:48 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:14 pm EDT.

What month has the most sunshine?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Foster?

In Foster, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in July?

In Foster, the average daily maximum UV index in July is 7. A UV Index of 6 to 7 symbolizes a high health risk 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 July
Foster, VA

Average temperature in July - Foster, VA
  • Average high temperature in July: 87.8°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in July: 72.3°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in July
Foster, VA

Average pressure in July - Foster, VA
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in July
Foster, VA

Average wind speed in July - Foster, VA
  • Average wind speed in July: 7.1mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in July
Foster, VA

Average humidity in July - Foster, VA
  • Average humidity in July: 72%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall in July
Foster, VA

Average rainfall in July - Foster, VA
  • Average rainfall in July: 3.31"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in July
Foster, VA

Average rainfall days in July - Foster, VA
  • Average rainfall days in July: 16.9 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in July
Foster, VA

Average snowfall in July - Foster, VA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Foster, VA

Average snowfall days in July - Foster, VA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Foster, VA

Average daylight in July / Average sunshine in July - Foster, VA
  • Average daylight in July: 14h and 2min

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 July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in July
Foster, VA

Average sunshine days in July - Foster, VA
  • Average sunshine days in July: 12.2 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in July
Foster, VA

Average UV index in July - Foster, VA
  • Average UV index in July: 7

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

Average cloud cover in July
Foster, VA

Average cloud cover in July - Foster, VA
  • Average cloud cover in July: 28

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in July
Foster, VA

Average visibility in July - Foster, VA
  • Average visibility in July: 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).

Foster, Virginia, USA

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