July weather forecast
Grimes, VA

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Weather in July

July is a hot summer month in Grimes, Virginia, with an average temperature fluctuating between 86°F (30°C) and 64°F (17.8°C).

Temperature

July, with its high-temperature average of 86°F (30°C) and a low-temperature average of 64°F (17.8°C), is the warmest month.

Heat index

For July, the heat index is appraised at a torrid 96.8°F (36°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The least humid month is July, with an average relative humidity of 73%.

Rainfall

In July, the rain falls for 17.8 days. Throughout July, 2.99" (76mm) of precipitation is accumulated. Throughout the year, in Grimes, there are 167.2 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

In Grimes, Virginia, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of July in Grimes, sunrise is at 5:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:25 pm EDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Grimes, Virginia. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during July translates into the following guidance:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What month is the hottest in Grimes?

Grimes's July weather reaches an average high of 86°F (30°C) and an average low of 64°F (17.8°C), making it the warmest month.

Is it hot in Grimes during July?

July temperatures in Grimes, Virginia, vary between a high-temperature of 86°F (30°C) and a low-temperature of 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in July is appraised at 96.8°F (36°C).

What is the least humid month in Grimes?

With an average relative humidity of 73%, July is the least humid month in Grimes, Virginia.

What is the average humidity in July in Grimes?

In Grimes, the average relative humidity in July is 73%.

How many days does it rain in July in Grimes?

In July, in Grimes, the rain falls for 17.8 days. Throughout July, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in Grimes?

In Grimes, snow does not fall in June through September.

What is the average length of the day in July in Grimes?

The average day length in July is 14h and 37min.

When are sunrise and sunset in July in Grimes?

On the first day of July in Grimes, Virginia, sunrise is at 5:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:25 pm EDT.

What month has the most sunshine in Grimes?

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

How many hours of sunshine does Grimes have in July?

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

What are the months with the highest UV index in Grimes?

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

What is the UV index reading in July in Grimes?

In July, the average daily maximum UV index in Grimes is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Grimes, VA

Average temperature in July - Grimes, VA
  • Average high temperature in July: 86°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 64°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in July
Grimes, VA

Average pressure in July - Grimes, VA
  • Average pressure in July: 29.98"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).

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Average wind speed in July
Grimes, VA

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

The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in July
Grimes, VA

Average humidity in July - Grimes, VA
  • Average humidity in July: 73%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in July
Grimes, VA

Average rainfall in July - Grimes, VA
  • Average rainfall in July: 2.99"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").

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Average rainfall days in July
Grimes, VA

Average rainfall days in July - Grimes, VA
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in July
Grimes, VA

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

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Grimes, VA

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
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 month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in July
Grimes, VA

Average sunshine days in July - Grimes, VA
  • Average sunshine days in July: 11.4 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).

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Average UV index in July
Grimes, VA

Average UV index in July - Grimes, 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).

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Average cloud cover in July
Grimes, VA

Average cloud cover in July - Grimes, VA
  • Average cloud cover in July: 30

The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in July
Grimes, VA

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

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

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Grimes, Virginia, USA

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