July weather forecast
Collinsville, VA

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Weather in July

July in Collinsville, Virginia, is a tropical summer month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 88.9°F (31.6°C).

Temperature

In Collinsville, Virginia, the average temperatures in July are the highest, with a peak at 88.9°F (31.6°C) and a low of 66°F (18.9°C).

Heat index

July's heat index is calculated to be a sweltering 102.2°F (39°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

July is the least humid month, with an average relative humidity of 70%.

Rainfall

In Collinsville, in July, it is raining for 14.3 days, with typically 1.5" (38mm) of accumulated precipitation. In Collinsville, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.

Snowfall

In Collinsville, snow does not fall in April, June through October.

Daylight

The average length of the day in July is 14h and 23min.
On the first day of July in Collinsville, sunrise is at 6:04 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:26 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.8h of sunshine.

UV index

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the UV index of 6 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

What time of the year is the hottest in Collinsville?

In Collinsville, July is the month with the highest recorded average temperatures, measuring a high of 88.9°F (31.6°C) and a low of 66°F (18.9°C).

How hot is it in July?

In July, in Collinsville, the average high-temperature is 88.9°F (31.6°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in July is calculated to be 102.2°F (39°C).

What is the least humid month?

July is the least humid month in Collinsville, with an average relative humidity of 70%.

What is the average humidity in July?

The average relative humidity in July is 70%.

How many days does it rain in July?

In July, the rain falls for 14.3 days. Throughout July, 1.5" (38mm) of precipitation is accumulated.

When it does not snow?

April, June through October are months without snowfall.

How many hours of daylight does Collinsville have in July?

In Collinsville, the average day length in July is 14h and 23min.

What time are sunrise and sunset in July in Collinsville?

In July, on the first day of the month, sunrise is at 6:04 am and sunset at 8:42 pm. On the last day of the month, in Collinsville, sunrise is at 6:25 am and sunset at 8:26 pm EDT.

What month has the most sunshine in Collinsville?

The month with the most sunshine is July, with an average of 10.8h of sunshine.

How many hours of sunshine does Collinsville have in July?

The average sunshine duration in July is 10.8h.

How high is the UV index in July?

In Collinsville, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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 July
Collinsville, VA

Average temperature in July - Collinsville, VA
  • Average high temperature in July: 88.9°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in July: 66°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in July
Collinsville, VA

Average pressure in July - Collinsville, VA
  • Average pressure in July: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in July
Collinsville, VA

Average wind speed in July - Collinsville, VA
  • Average wind speed in July: 4.3mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in July
Collinsville, VA

Average humidity in July - Collinsville, VA
  • Average humidity in July: 70%

The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in July
Collinsville, VA

Average rainfall in July - Collinsville, VA
  • Average rainfall in July: 1.5"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in July
Collinsville, VA

Average rainfall days in July - Collinsville, VA
  • Average rainfall days in July: 14.3 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7 days).

Average snowfall in July
Collinsville, VA

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

The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in July
Collinsville, VA

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

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

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

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

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in July
Collinsville, VA

Average sunshine days in July - Collinsville, VA
  • Average sunshine days in July: 14.2 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.2 days).

Average UV index in July
Collinsville, VA

Average UV index in July - Collinsville, VA
  • Average UV index in July: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Collinsville, VA

Average cloud cover in July - Collinsville, VA
  • Average cloud cover in July: 29

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in July
Collinsville, VA

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

Collinsville, Virginia, USA

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