August weather forecast
Simpsonville, MD

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Weather in August

The last month of the summer, August, is another warm month in Simpsonville, Maryland, with an average temperature fluctuating between 67.3°F (19.6°C) and 83.8°F (28.8°C).

Temperature

The introduction of August sees an average high-temperature of a still moderately hot 83.8°F (28.8°C), hardly deviating from July. Simpsonville encounters an average low-temperature of 67.3°F (19.6°C) during August nights.

Heat index

August's heat index is calculated to be a tropical 91.4°F (33°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity in Simpsonville is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 17.1 days and accumulates 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

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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

How hot is August in Simpsonville?

In Simpsonville, 83.8°F (28.8°C) is the average high-temperature and 67.3°F (19.6°C) is the average low-temperature during August. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 91.4°F (33°C).

What is the average humidity in August in Simpsonville?

In August, the average relative humidity in Simpsonville, Maryland, is 73%.

What is the rainiest month in Simpsonville?

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

How much does it rain in Simpsonville in August?

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

When it does not snow in Simpsonville?

April through October are months without snowfall.

How many hours of daylight does Simpsonville have in August?

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

What time are sunrise and sunset in August in Simpsonville?

On the first day of August in Simpsonville, 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 many hours of sunshine does Simpsonville have in August?

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

When is the highest UV index in Simpsonville?

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

What is the UV index reading in August in Simpsonville?

In Simpsonville, Maryland, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Simpsonville, Maryland, USA

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