August weather forecast
Keysville, MD

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Weather in August

August, the last month of the summer in Keysville, is another warm month, with an average temperature fluctuating between 63.1°F (17.3°C) and 81.9°F (27.7°C).

Temperature

Keysville, Maryland, records an average high-temperature of a still warm 81.9°F (27.7°C) in August, closely mirroring the climate of the previous month. Keysville records an average nighttime low-temperature of 63.1°F (17.3°C) throughout August.

Heat index

For August, the heat index is appraised at a hot 87.8°F (31°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
Heat index evaluations are typically in the context of light winds and shaded environments. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

The average relative humidity in August in Keysville is 78%.

Rainfall

The month with the most rainfall is August, when the rain falls for 17 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

June through September are months without snowfall in Keysville, Maryland.

Daylight

In Keysville, the average length of the day in August is 13h and 41min.
On the first day of August, sunrise is at 6:09 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:41 pm EDT.

Sunshine

In Keysville, the average sunshine in August is 10.1h.

UV index

The months with the highest UV index in Keysville are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in August transforms into this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What are the temperatures in Keysville in August?

Keysville in August has an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 63.1°F (17.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in August in Keysville?

In August, the average relative humidity is 78%.

What is the rainiest month in Keysville?

The month with the most rainfall in Keysville, Maryland, is August, when the rain falls for 17 days and typically aggregates up to 3.23" (82mm) of precipitation.

How much does it rain in Keysville in August?

In Keysville, during August, the rain falls for 17 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When it does not snow in Keysville?

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

How many hours of daylight does Keysville have in August?

In August, the average day length in Keysville is 13h and 41min.

When are sunrise and sunset in August in Keysville?

On the first day of August in Keysville, Maryland, sunrise is at 6:09 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:41 pm EDT.

How many hours of sunshine does Keysville have in August?

The average sunshine duration in August in Keysville is 10.1h.

What is the month with the highest UV index in Keysville?

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 August in Keysville?

In Keysville, the average daily maximum UV index in August 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 August
Keysville, MD

Average temperature in August - Keysville, MD
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in August
Keysville, MD

Average pressure in August - Keysville, MD
  • 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
Keysville, MD

Average wind speed in August - Keysville, MD
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in August
Keysville, MD

Average humidity in August - Keysville, MD
  • Average humidity in August: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in August
Keysville, MD

Average rainfall in August - Keysville, MD
  • Average rainfall in August: 3.23"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days in August
Keysville, MD

Average rainfall days in August - Keysville, MD
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in August
Keysville, MD

Average snowfall in August - Keysville, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Keysville, MD

Average snowfall days in August - Keysville, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.7 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
Keysville, MD

Average daylight in August / Average sunshine in August - Keysville, MD
  • 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 24min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Keysville, MD

Average sunshine days in August - Keysville, MD
  • Average sunshine days in August: 11.4 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in August
Keysville, MD

Average UV index in August - Keysville, MD
  • 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
Keysville, MD

Average cloud cover in August - Keysville, MD
  • Average cloud cover in August: 33

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in August
Keysville, MD

Average visibility in August - Keysville, MD
  • Average visibility in August: 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).

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Keysville, Maryland, USA

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