August weather forecast
Simpsonville, MD

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Weather in August

August, the last month of the summer in Simpsonville, is also a moderately hot month, with an average temperature varying between 83.8°F (28.8°C) and 67.3°F (19.6°C).

Temperature

Simpsonville experiences a recorded average high-temperature of a still warm 83.8°F (28.8°C) in August, closely aligned with July's 85.8°F (29.9°C). During August nights, Simpsonville witnesses a consistent average temperature of 67.3°F (19.6°C).

Heat index

In August, the average heat index is estimated at a tropical 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

The average relative humidity in August is 73%.

Rainfall

The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.06" (103mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

Sunshine

In Simpsonville, the average sunshine in August is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

Simpsonville in August has an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 67.3°F (19.6°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 91.4°F (33°C).

What is the average humidity in August?

In August, the average relative humidity is 73%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 17.1 days and accumulates 4.06" (103mm) of precipitation.

How much does it rain in August?

In Simpsonville, during August, the rain falls for 17.1 days and regularly aggregates up to 4.06" (103mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 40min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:39 pm EDT.

How long on average sun shines in August?

In Simpsonville, Maryland, the average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

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

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Simpsonville, MD

Average temperature in August - Simpsonville, MD
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
Simpsonville, MD

Average pressure in August - Simpsonville, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Simpsonville, MD

Average wind speed in August - Simpsonville, MD
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in August
Simpsonville, MD

Average humidity in August - Simpsonville, MD
  • Average humidity in August: 73%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in August
Simpsonville, MD

Average rainfall in August - Simpsonville, MD
  • Average rainfall in August: 4.06"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in August
Simpsonville, MD

Average rainfall days in August - Simpsonville, MD
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in August
Simpsonville, MD

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

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

Average snowfall days in August
Simpsonville, MD

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

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Simpsonville, MD

Average daylight in August / Average sunshine in August - Simpsonville, 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 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in August
Simpsonville, MD

Average sunshine days in August - Simpsonville, MD
  • Average sunshine days in August: 12 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

Average UV index in August
Simpsonville, MD

Average UV index in August - Simpsonville, 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).

Average cloud cover in August
Simpsonville, MD

Average cloud cover in August - Simpsonville, MD
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in August
Simpsonville, MD

Average visibility in August - Simpsonville, MD
  • Average visibility in August: 6mi

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

Simpsonville, Maryland, USA

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