August weather forecast
Lake Preston, SD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Lake Preston, South Dakota, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 59.4°F (15.2°C).

Temperature

Transitioning into August, Lake Preston records an average high-temperature of a still warm 81°F (27.2°C), almost identical to July's 82.2°F (27.9°C). August presents a pronounced divergence from daily peak temperatures, with the average low-temperature of 59.4°F (15.2°C).

Heat index

For most parts of August, the heat index is calculated to be 84.2°F (29°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In Lake Preston, the average relative humidity in August is 71%.

Rainfall

In Lake Preston, in August, it is raining for 12.3 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, in Lake Preston, there are 111.2 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Lake Preston, the average length of the day in August is 13h and 58min.
On the first day of August, sunrise is at 6:17 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:07 pm CDT.

Sunshine

In August, the average sunshine is 10h.

UV index

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during August morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

The high-temperature, in August, in Lake Preston, records 81°F (27.2°C), while the low-temperature is 59.4°F (15.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 84.2°F (29°C).

What is the average humidity in August?

In Lake Preston, the average relative humidity in August is 71%.

How much does it rain in August?

In Lake Preston, in August, it is raining for 12.3 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow?

In Lake Preston, South Dakota, snow does not fall in June through September.

How many hours of daylight does Lake Preston have in August?

The average day length in August is 13h and 58min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:07 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration in Lake Preston is 10h.

How high is the UV index in August?

In Lake Preston, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Lake Preston, SD

Average temperature in August - Lake Preston, SD
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in August: 59.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

Average pressure in August
Lake Preston, SD

Average pressure in August - Lake Preston, SD
  • Average pressure in August: 29.93"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Lake Preston, SD

Average wind speed in August - Lake Preston, SD
  • Average wind speed in August: 8.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in August
Lake Preston, SD

Average humidity in August - Lake Preston, SD
  • Average humidity in August: 71%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August
Lake Preston, SD

Average rainfall in August - Lake Preston, SD
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is November (0.59").

Average rainfall days in August
Lake Preston, SD

Average rainfall days in August - Lake Preston, SD
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is January (1.6 days).

Average snowfall in August
Lake Preston, SD

Average snowfall in August - Lake Preston, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Lake Preston, SD

Average snowfall days in August - Lake Preston, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Lake Preston, SD

Average daylight in August / Average sunshine in August - Lake Preston, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Lake Preston, SD

Average sunshine days in August - Lake Preston, SD
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in August
Lake Preston, SD

Average UV index in August - Lake Preston, SD
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Lake Preston, SD

Average cloud cover in August - Lake Preston, SD
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Lake Preston, SD

Average visibility in August - Lake Preston, SD
  • Average visibility in August: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Lake Preston, South Dakota, USA

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