August weather forecast
Grimes, VA

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Weather in August

August, the last month of the summer in Grimes, is another warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 62.2°F (16.8°C).

Temperature

The advent of August sees the average high-temperature at a warm 83.8°F (28.8°C), subtly shifted from July's 86°F (30°C). Nightly readings in August display a noticeable downturn from daily highs in Grimes, with the average low-temperature registering an enjoyable 62.2°F (16.8°C).

Heat index

During August, the heat index is appraised at a hot 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In Grimes, the average relative humidity in August is 75%.

Rainfall

In Grimes, Virginia, in August, during 17.3 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, in Grimes, Virginia, there are 167.2 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Grimes is 13h and 40min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:24 pm. On the last day of August, in Grimes, sunrise is at 6:40 am and sunset at 7:44 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Grimes. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

How hot does it get in Grimes in August?

In Grimes, 83.8°F (28.8°C) is the average high-temperature and 62.2°F (16.8°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is appraised at 91.4°F (33°C).

What is the average humidity in August in Grimes?

In Grimes, Virginia, the average relative humidity in August is 75%.

How much does it rain in Grimes in August?

In Grimes, during August, the rain falls for 17.3 days and regularly aggregates up to 3.03" (77mm) of precipitation.

When it does not snow in Grimes?

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

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

In August, the average day length is 13h and 40min.

When is the sunrise / sunset in August in Grimes?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:44 pm EDT.

How long on average sun shines in August in Grimes?

The average sunshine duration in August is 10.3h.

When is the highest UV index in Grimes?

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

How high is the UV index in August in Grimes?

In Grimes, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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 August
Grimes, VA

Average temperature in August - Grimes, VA
  • Average high temperature in August: 83.8°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 August: 62.2°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 August
Grimes, VA

Average pressure in August - Grimes, VA
  • Average pressure in August: 30"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 August
Grimes, VA

Average wind speed in August - Grimes, VA
  • Average wind speed in August: 4.2mph

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 August
Grimes, VA

Average humidity in August - Grimes, VA
  • Average humidity in August: 75%

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 August
Grimes, VA

Average rainfall in August - Grimes, VA
  • Average rainfall in August: 3.03"

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 August
Grimes, VA

Average rainfall days in August - Grimes, VA
  • Average rainfall days in August: 17.3 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 August
Grimes, VA

Average snowfall in August - Grimes, VA
  • Average snowfall in August: 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 August
Grimes, VA

Average snowfall days in August - Grimes, VA
  • Average snowfall days in August: 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 August /
Average sunshine in August
Grimes, VA

Average daylight in August / Average sunshine in August - Grimes, VA
  • Average daylight in August: 13h 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 August: 10h and 2min

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 August
Grimes, VA

Average sunshine days in August - Grimes, VA
  • Average sunshine days in August: 11.7 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 August
Grimes, VA

Average UV index in August - Grimes, VA
  • Average UV index in August: 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 August
Grimes, VA

Average cloud cover in August - Grimes, VA
  • Average cloud cover in August: 32

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 August
Grimes, VA

Average visibility in August - Grimes, VA
  • Average visibility in August: 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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