August weather forecast
Black Horse, SD

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Weather in August

August, the last month of the summer in Black Horse, is another warm month, with an average temperature fluctuating between 61.9°F (16.6°C) and 82.6°F (28.1°C).

Temperature

August's arrival registers an average high-temperature of a still moderately hot 82.6°F (28.1°C), closely aligning with the temperature of the previous month. During August, an average low-temperature of 61.9°F (16.6°C) is observed.

Heat index

The heat index for August is appraised at 84.2°F (29°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 51%.

Rainfall

In Black Horse, in August, it is raining for 11.3 days, with typically 1.34" (34mm) of accumulated precipitation. In Black Horse, South Dakota, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 14h and 4min.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:06 am and sunset at 7:24 pm MDT.

Sunshine

August has the most sunshine of the year, with an average of 11.5h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 6 in August transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In Black Horse, in August, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 61.9°F (16.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 84.2°F (29°C).

What are the least humid months?

The months with the lowest humidity are August and September, with an average relative humidity of 51%.

What is the average humidity in August?

The average relative humidity in August is 51%.

How many days does it rain in August?

In Black Horse, in August, it is raining for 11.3 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

In Black Horse, the average day length in August is 14h and 4min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:29 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:24 pm MDT.

What month has the most sunshine?

With an average of 11.5h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

In Black Horse, the average sunshine duration in August is 11.5h.

When is the highest UV index?

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

How high is the UV index in August?

In Black Horse, South Dakota, the average daily maximum UV index in August is 6. A UV Index value 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
Black Horse, SD

Average temperature in August - Black Horse, SD
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in August: 61.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

Average pressure in August
Black Horse, SD

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

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

Average wind speed in August
Black Horse, SD

Average wind speed in August - Black Horse, SD
  • Average wind speed in August: 9.6mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

Average humidity in August
Black Horse, SD

Average humidity in August - Black Horse, SD
  • Average humidity in August: 51%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in August
Black Horse, SD

Average rainfall in August - Black Horse, SD
  • Average rainfall in August: 1.34"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Black Horse, SD

Average rainfall days in August - Black Horse, SD
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in August
Black Horse, SD

Average snowfall in August - Black Horse, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Black Horse, SD

Average snowfall days in August - Black Horse, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Black Horse, SD

Average daylight in August / Average sunshine in August - Black Horse, SD
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 3min

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

Average sunshine days in August
Black Horse, SD

Average sunshine days in August - Black Horse, SD
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in August
Black Horse, SD

Average UV index in August - Black Horse, SD
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Black Horse, SD

Average cloud cover in August - Black Horse, SD
  • Average cloud cover in August: 20

The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in August
Black Horse, SD

Average visibility in August - Black Horse, 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).

Black Horse, South Dakota, USA

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