July weather forecast
Grimes, VA

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Weather in July

July in Grimes, Virginia, is a tropical summer month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 86°F (30°C).

Temperature

Grimes registers the highest average temperatures during the month of July, with peaks of 86°F (30°C) and lows of 64°F (17.8°C).

Heat index

For most parts of July, the heat index is appraised at a torrid 96.8°F (36°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

In July, the rain falls for 17.8 days. Throughout July, 2.99" (76mm) of precipitation is accumulated. In Grimes, during the entire year, the rain falls for 167.2 days and collects up to 29.61" (752mm) of precipitation.

Snowfall

June through September are months without snowfall in Grimes.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of July, 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

The month with the most sunshine is July, with an average of 10.7h of sunshine.

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 health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

The warmest temperatures occur during July, when averages reach a peak of 86°F (30°C) and a low of 64°F (17.8°C).

Is it hot during July?

During July, Grimes experiences an average high-temperature of 86°F (30°C) and a low-temperature of 64°F (17.8°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 96.8°F (36°C).

What is the least humid month?

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

What is the average humidity in July?

The average relative humidity in July is 73%.

How many days does it rain in July?

In Grimes, in July, during 17.8 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Grimes have in July?

In Grimes, the average day length in July is 14h and 37min.

What time are sunrise and sunset in July?

In July, on the first day of the month, 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?

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

How long on average sun shines in July in Grimes?

The average sunshine duration in July is 10.7h.

What are the months with 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 reading in July in Grimes?

The average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Grimes, Virginia, USA

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