August weather forecast
Pierre, SD

The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park
The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park

Weather in August

August, the last month of the summer in Pierre, is another tropical month, with temperature in the range of an average high of 86°F (30°C) and an average low of 65.5°F (18.6°C).

Temperature

In Pierre, South Dakota, the average high-temperature in August is almost the same as in July - a still hot 86°F (30°C). In Pierre, South Dakota, the average low-temperature is 65.5°F (18.6°C).

Heat index

In August, the average heat index is appraised at a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, metabolic differences, clothing). 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 52%.

Rainfall

In Pierre, in August, during 11.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Pierre, during the entire year, the rain falls for 98.5 days and collects up to 13.7" (348mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Pierre is 13h and 58min.
On the first day of the month, sunrise is at 6:28 am and sunset at 9:06 pm. On the last day of August, in Pierre, sunrise is at 7:03 am and sunset at 8:20 pm CDT.

Sunshine

In August, the average sunshine is 11h.

UV index

In August, the average daily maximum UV index in Pierre is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Pierre?

In Pierre, in August, the average high-temperature is 86°F (30°C), and the average low-temperature is 65.5°F (18.6°C). in August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 87.8°F (31°C).

What are the least humid months in Pierre?

August and September, with an average relative humidity of 52%, are the least humid months.

What is the average humidity in August in Pierre?

The average relative humidity in August in Pierre is 52%.

How many days does it rain in August in Pierre?

In Pierre, South Dakota, in August, during 11.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Pierre?

June through September are months without snowfall in Pierre, South Dakota.

How many hours of daylight does Pierre have in August?

In August, the average day length in Pierre, South Dakota, is 13h and 58min.

When is the sunrise / sunset in August in Pierre?

On the first day of August, sunrise is at 6:28 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:20 pm CDT.

How many hours of sunshine does Pierre have in August?

The average sunshine duration in August is 11h.

How high is the UV index in August in Pierre?

In Pierre, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Pierre, SD

Average temperature in August - Pierre, SD
  • Average high temperature in August: 86°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in August
Pierre, SD

Average pressure in August - Pierre, SD
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in August
Pierre, SD

Average wind speed in August - Pierre, SD
  • Average wind speed in August: 9.9mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in August
Pierre, SD

Average humidity in August - Pierre, SD
  • Average humidity in August: 52%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in August
Pierre, SD

Average rainfall in August - Pierre, SD
  • Average rainfall in August: 1.34"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in August
Pierre, SD

Average rainfall days in August - Pierre, SD
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in August
Pierre, SD

Average snowfall in August - Pierre, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Pierre, SD

Average snowfall days in August - Pierre, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (10 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
Pierre, SD

Average daylight in August / Average sunshine in August - Pierre, SD
  • Average daylight in August: 13h and 58min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in August: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Pierre, SD

Average sunshine days in August - Pierre, SD
  • Average sunshine days in August: 15 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in August
Pierre, SD

Average UV index in August - Pierre, SD
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in August
Pierre, SD

Average cloud cover in August - Pierre, SD
  • Average cloud cover in August: 19

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in August
Pierre, SD

Average visibility in August - Pierre, SD
  • 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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