July weather forecast
Haymarket, VA

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Weather in July

July is a hot summer month in Haymarket, Virginia, with an average temperature varying between 88.3°F (31.3°C) and 67.1°F (19.5°C).

Temperature

July, with its high-temperature average of 88.3°F (31.3°C) and a low-temperature average of 67.1°F (19.5°C), is the warmest month.

Heat index

For July, the heat index is calculated to be a fiery hot 102.2°F (39°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

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

Rainfall

In July, the rain falls for 15.8 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 157.5 rainfall days, and 30.35" (771mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 34min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:39 pm. On the last day of July, sunrise is at 6:11 am and sunset at 8:22 pm EDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

What is the warmest month?

Haymarket's warmest temperatures are experienced in July, with average high temperatures of 88.3°F (31.3°C) and lows of 67.1°F (19.5°C).

How hot is it in July?

In Haymarket, in July, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is calculated to be 102.2°F (39°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 Haymarket in July?

In Haymarket, Virginia, in July, during 15.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Haymarket?

In Haymarket, Virginia, snow does not fall in May through October.

How many hours of daylight does Haymarket have in July?

In Haymarket, the average day length in July is 14h and 34min.

What time are sunrise and sunset in July in Haymarket?

In July, on the first day of the month, sunrise is at 5:49 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:22 pm EDT.

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July?

In Haymarket, the average sunshine duration in July is 10.7h.

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.

What is the UV index intensity in July?

In Haymarket, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe 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 July
Haymarket, VA

Average temperature in July - Haymarket, VA
  • Average high temperature in July: 88.3°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 (40.6°F).

  • Average low temperature in July: 67.1°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in July
Haymarket, VA

Average pressure in July - Haymarket, VA
  • Average pressure in July: 29.97"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 July
Haymarket, VA

Average wind speed in July - Haymarket, VA
  • Average wind speed in July: 4.7mph

The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in July
Haymarket, VA

Average humidity in July - Haymarket, 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
Haymarket, VA

Average rainfall in July - Haymarket, VA
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in July
Haymarket, VA

Average rainfall days in July - Haymarket, VA
  • Average rainfall days in July: 15.8 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in July
Haymarket, VA

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

The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Haymarket, VA

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

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Haymarket, VA
  • Average daylight in July: 14h 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 July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

Average sunshine days in July
Haymarket, VA

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

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in July
Haymarket, VA

Average UV index in July - Haymarket, VA
  • Average UV index in July: 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 July
Haymarket, VA

Average cloud cover in July - Haymarket, VA
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Haymarket, VA

Average visibility in July - Haymarket, VA
  • Average visibility in July: 6mi

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

Haymarket, Virginia, USA

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