August weather forecast
Clark, SD

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Weather in August

August, the last month of the summer in Clark, is another warm month, with temperature in the range of an average low of 59°F (15°C) and an average high of 80.1°F (26.7°C).

Temperature

With August's arrival, Clark's weather records an average high-temperature of a still moderately hot 80.1°F (26.7°C), marking little difference from July's 80.8°F (27.1°C). Clark reports a consistent average low-temperature of 59°F (15°C) throughout August nights.

Humidity

In August, the average relative humidity is 69%.

Rainfall

In Clark, in August, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Clark, South Dakota, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Clark is 14h and 1min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:56 pm. On the last day of August, sunrise is at 6:52 am and sunset at 8:09 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

In Clark, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Clark, records 80.1°F (26.7°C), while the low-temperature is 59°F (15°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in July is evaluated at 84.2°F (29°C).

What is the average humidity in August?

In Clark, the average relative humidity in August is 69%.

How much does it rain in August?

In August, the rain falls for 12.4 days. Throughout August, 1.81" (46mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Clark have in August?

In Clark, the average day length in August is 14h and 1min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:17 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:09 pm CDT.

How many hours of sunshine does Clark have in August?

In August, the average sunshine duration is 10.3h.

How high is the UV index in August?

In Clark, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Clark, SD

Average temperature in August - Clark, SD
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure in August
Clark, SD

Average pressure in August - Clark, SD
  • Average pressure in August: 29.92"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
Clark, SD

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

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in August
Clark, SD

Average humidity in August - Clark, SD
  • Average humidity in August: 69%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in August
Clark, SD

Average rainfall in August - Clark, SD
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

Average rainfall days in August
Clark, SD

Average rainfall days in August - Clark, SD
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in August
Clark, SD

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

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Clark, SD

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

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Clark, SD

Average daylight in August / Average sunshine in August - Clark, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in August
Clark, SD

Average sunshine days in August - Clark, SD
  • Average sunshine days in August: 15.7 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in August
Clark, SD

Average UV index in August - Clark, 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
Clark, SD

Average cloud cover in August - Clark, SD
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Clark, SD

Average visibility in August - Clark, 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).

Clark, South Dakota, USA

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